U. S. Department of the Interior U.S. Geological Survey
PALEONTOLOGY OF THE LIVENGOOD QUADRANGLE, ALASKA
by
Florence R. Weber1 , Robert B. Blodgett?, Anita G. Harris2, and J. Thomas Dutro, Jr.3 1994
Open-File Report 94-215
This report is preliminary and has not been reviewed for conformity with Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product, or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
*U.S. Geological Survey, P.O. Box 80586, Fairbanks, ALAS 99708 2U.S. Geological Survey, MS970 National Center, Reston, VA 22092 3U.S. Geological Survey, Room E-308, Museum of Natural History, MRC-137, Washington, DC 20560 INTRODUCTION ^
Despite the few systematic paleontologic studies on fossils from the Livengood quadrangle, faunal reports and lists are available in the literature as far back as the early 1900s for Paleozoic and Mesozoic strata in the quadrangle; Mertie (1937) provides the most detailed data. Other references with faunal information for various units and areas in the Livengood quadrangle include Martin (1926), Mertie (1917), Prindle (1908,1913), Prindle and Hess (1906), and Robinson (1983). This report includes all these older data with improved locality information and updated age assignments.
Paleozoic and Mesozoic fossils from the Livengood quadrangle are generally poorly preserved because the rocks are tectonicaliy disrupted and sheared locally and have undergone at least lower greenschist fades metamorphism. The oldest recognized fossil, the trace fossil Oldhamia, occurs in olive-green slate of the -GZwg unit, but can only be recognized where cleavage and bedding are parallel, or nearly so. Most of the carbonate rocks in the quadrangle are so recrystallized that recognition and recovery of fossils is difficult. Conodonts from rocks of Early Ordovician to Triassic age have color alteration indices (CAI) of 5 to 6, indicating that these rocks reached at least 300° to 400°C. One exception is a sample from the Lost Creek limestone unit (table 1, loc. 23, USGS colln. 11437-SD) which produced conodonts having a CAI value of 4. The most recrystallized carbonate rocks are in the Tolovana Limestone (Silurian to Middle Devonian). In this unit, the only megafossils easily recognizable in the field are corals and brachioppds. Shelly forms are hard to recover from the enclosing rock matrix and even generic determination is difficult. Upper Devonian limestone bodies near the base of the Quail unit are also locally recrystallized, particularly where the unit is thin bedded. Commonly, the only identifiable megafossils are crinoid ossicles and tectonicaliy stretched tabulate corals. Extensive silicification of megafossils at locality 110 (field no. 87ABd10) allowed etching of rugose and tabulate corals. Thin sections of corals from unetched rock frequently show tectonicaliy sheared but generically identifiable forms (James Sorauf, written communication, 1989).
Fine-grained siliciclastic rocks have yielded the best preserved Paleozoic fossils in this region. Rather well-preserved and identifiable fossils, most frequently as casts and molds, are known from the uppermost sedimentary beds of the Fossil Creek Volcanics (Upper Ordovician), as well as from the Cascaden Ridge unit (Middle Devonian).
Table 1 gives the approximate location of all paleontologic collections from the Livengood quadrangle that have been made since 1900. The fauna! and floral identifications are the original determinations and have not been revised, except where noted. Taxonomic concepts and stratigraphic ranges have changed considerably during the last 100 years so that taxonomic and age determinations given for some samples are literally out-of-date. Many of the collections were not reevaluated either because they have disappeared or appropriate specialists were unavailable. Nonetheless, all paleontologic data are included here so that future investigators can understand the basis for the age assignment of stratigraphic units in the Livengood and adjacent quadrangles.
I Fossil localities in table 1 are arranged roughly in order of decreasing geologic age. All localities are plotted on a geologic base map generalized from Weber and others (1992). The locations and analyses of fossil collections were taken from published reports and unpublished reports written chiefly by paleontologists of the U.S. Geological Survey, and a few paleontologists affiliated with private Industry, universities, or other government agencies. Some collections have been examined by several paleontologists and many localities have been relocated and resampled. Multiple collections from the same locality have the same locality number on the map and table 1. The accepted age for each unit as used by Weber and others (1992) is based on the most biostratigraphically significant collections; these are marked by an asterisk in table 1. For various reasons, the accepted age may be broader or narrower than that suggested by paleontologists. Rarely, a single locality on the map appears with two numbers; these numbers represent individual collections that are too close to show separately on the map. Because of the constraints of map scale, some localities may appear to be plotted in an inappropriate unit. For the most accurate location, we suggest that latitude and longitude coordinates be used in conjunction with 1:63,360- scale topographic maps.
REMARKS AND AGE ASSIGNMENTS
CAMBRIAN
Specimens of the distinctive trace fossil Oldhamia (Mertie, 1937, pi. 9) are probably the oldest fossils known from the LJvengood quadrangle. These forms occur on a mountain at elevation 3020 ft (now informally called "Mt. Oldhamia"), 1.5 miles southwest of VABM Ronald (loc. 1). This locality was thought by Mertie to be part of a Mississipplan sequence, though no other fossils were associated with it (Mertie, 1937, p. 121). None of the other localities listed by Mertie as containing Mississippian fossils (1937, p. 120) is really close or clearly related to this site, especially as they are now known to be separated by a major thrust fault. The Oldhamias occur in olive-green slates containing very thin layers of gritty siltstone. The Oldhamia beds are mapped within the Wickersham unit (-GZwg) which, in this area, underlies a prominent sequence of maroon and green slate (-CZwa). Churkin and Brabb (1965) suggested that the Mt. Oldhamia locality was of Cambrian age, because other O/dha/D/a-bearing strata from east-central Alaska (e.g., in the Circle and Charley River quadrangles) were thought, but not proven, to be Early Cambrian. Although, no where in Alaska, is Oldhamia known to occur in beds of undisputed age the worldwide occurrences are nearly all Lower Cambrian (LJndholm and Casey, 1990; Hofmann and Cecille, 1981).
ORDOVICIAN
Sedimentary strata in the Fossil Creek Volcanics (Ofv) have also been dated by fossils. A collection made by Eliot Blackwekter in 1915 on the east bank of the southeast fork of Willow Creek (loc. 3) was identified as Early Ordovician by Edwin Kirk and E.O. Ulrich on the basis of one brachiopod and several trilobites. From Blackweider's notes, the location of this site is quite clear, although later workers have failed to find additional fossils at this site. In 1972, M.E. Tayior and A.J. Rowell reexamined the old collection, revised the identifications, and confirmed the Early Ordovician age. In addition, J.W. Huddle recovered Early Ordovician conodonts from the same sample. J.E. Repetskl (1992, written communication) refined the age of Huddle's conodont faunule to middle or late Tremadocian. The fossils come are from the basal sedimentary unit of the Fossil Creek Volcanics. An earliest Ordovician (middle Tremadocian) age was confirmed by A.G. Harris and R.C. Orndorff (1988, written communication) on the basis of conodonts from another nearby site.
Late Ordovician fossils from the uppermost part of the Fossil Creek Volcanics were illustrated and discussed in three papers: corals by Oliver and others (1975, p. 24, pi. 4, figs. 1-6), a sphinctozoan sponge by Rigby and others (1988), and brachiopods and gastropods by Blodgett and others (1987). Other fossils (corals, trilobites, and conodonts) from this unit were discussed in the latter paper, but were not illustrated. One radiolarian occurrence of Ordovician age is recorded in table 1 (loc. 10).
The Livengbod Dome Chert generally produces radiolarians that are too poorly preserved for useful age determination (table 1). However, graptolites (Chapman and others, 1980), conodonts, and sponges date the unit as Ordovician (table 1, Iocs. 14 and 15). The occurrence of radiolarians and sponge spicules in the Amy Creek unit (table 1) suggests that at least part of this unit, as presently mapped, is of Paleozoic age. Other stratigraphic evidence suggests that the Amy Creek may be, in part, of Precambrian age. It is siliceous and dolomitic and contains algal-coated grains, features reminiscent of Tmdir-type or lowest Paleozoic dolomites in the Charley River quadrangle (Brabb and Churkin, 1969). The precise age of the Amy Creek remains unresolved; it overlies the LJvengood Dome Chert of Ordovician age, but the contact may be structural rather than stratigraphic.
SILURIAN-DEVONIAN
The age and correlation of rocks along the second tributary on the west side of Lost Creek in the LJvengood C-4 quadrangle (loc. 23) have had a varied history, though these rocks contain fossils. The site was examined originally by Overbeck in 1918 who considered the rocks to be part of the Livengood Chert. Fossils from the site were considered nondiagnostic by G.H. Girty, U.S. Geological Survey; but these fossils, in addition to some from other localities, led to a tentative Mississippian age assignment for the LJvengood Chert (Mertie, 1937, p. 110). Subsequently, the inclusion of these rocks in the LJvengood Chert was questioned because they are not lithologically typical of the chert unit.
In 1962, Helen Duncan and W.A. Oliver, Jr. re-examined the corals from the original collection and assigned them a Silurian or Devonian age. New collections from locality 23, made in the 1960s and 1970s, confirmed a Silurian to Middle Devonian age.
By 1980, the LJvengood Chert was redefined as the Livengood Dome Chert, a type section in a large borrow pit (table 1, loc. 14) about one mile north of the Lost Creek fossil site was chosen, and an Ordovician age was established on the basis of graptolites found in the type section. The Lost Creek fossil section was excluded from the redefined Livengood Dome Chert. More recently, diagnostic Late Silurian brachiopods and trilobites were found in the Lost Creek unit (Blodgett and others, 1988). Another limestone in the vicinity of Lost Creek contains crinoid ossicles and is included within the Lost Creek unit (DSI) in this report. The Schwatka unit (Dsl) produces a low-diversity fauna. The most biostratigraphicaily diagnostic elements are conodonts and the distinctive two-hole crinoid ossicle, Gasterocoma? bicauli. These forms indicate an Emsian to Eifelian (late Early to early Middle Devonian) age.
Silurian corals (mostly tabulates) from the Tolovana Limestone (DSt) of the White Mountains were briefly discussed and partly illustrated by Oliver and others (1975, p. 26, pi. 10, figs. 3-6). Early Silurian (early or middle Llandoverian) conodonts were reported from the basal part of the Tolovana (Blodgett and others, 1987, p. 57; this report, table 1, loc. 26). No complete section of the Tolovana has been measured, but its thickness has been estimated to be "as much as 3,000 feet" (Mertie, 1937, p. 88) or "more than 1,200 m thick" (Blodgett and others, 1987, p. 54). Pentamerid brachiopods of late Llandoverian and Wenlockian age have been identified from several localities. Early Devonian faunas have not been found in the Tolovana Limestone. Middle Devonian corals from the uppermost part of the Tolovana were discussed and several species illustrated by Oliver and others (1975, p. 33, pi. 21, figs. 5-11). This Middle Devonian part of the Tolovana, not recognized in the type area in the White Mountains, may eventually be placed in a separate stratigraphic unit, although probable Middle Devonian fossils were recovered in the type area (table 1, loc. 55). This Middle Devonian unit occurs southwest of the White Mountains, near the Elliott Highway (north side of Globe Creek, Livengood B-3 quadrangle) at VABM Minto (5 miles east of COD Lake, Livengood A-4 quadrangle), and even farther southwest in the Dugan Hills area (Fairbanks D-6 and Kantishna River D-1 quadrangles). This unit is sparsely fossiliferous dark-gray lime mudstone and wackestone; it differs from the Silurian part of the Tolovana because it is darker colored and more distinctly bedded. No sections have been measured in this unit, but it is at least 1,500 ft (450 m) thick.
The Cascaden Ridge unit (lower Middle Devonian) is probably the most paleontologically productive unit in the Livengood quadrangle. Fossils are more diverse and more easily recovered from this unit than from any other in the quadrangle. McAlester (1962) described a new species of pterioid bivalve, Actinopteria taberi, from an abandoned borrow pit on the north side of the Elliott Highway (loc. 77). McAlester favored, but was not certain of, a Middle Devonian age for this species.
Fossils collected, chiefly corals and brachiopods, and stratigraphic work undertaken in the 1960s, suggested that the Cascaden Ridge unit was mostly of early Late Devonian (Frasnian) age. The fossils were later restudied and a probable Middle Devonian age assigned (J.T. Dutro, Jr., written communication, 1987). Ormiston (1972, p. 601) noted the occurrence of an Eifelian (early Middle Devonian) trilobite which he identified as Dechenella aff. D. haldemani (Hall)(loc. 87), 12.4 miles (20 km) west-southwest of the type locality of Actinopteria taberi. Additional, newly collected specimens of this decheneilid trilobite indicate it is not allied to Hail's Appalachian species. Rather it is more closely related to D. (D.) /nc/aren/Ormiston, known from the early Middle Devonian (Eifeiian) of the Canadian Arctic Islands (A.R. Ormiston, oral communication, 1992). Corals, mostly tabulates, were briefly discussed and listed by Oliver and others (1975, p. 33). A single unnamed species of Heliolites (Oliver and others, 1975, pi. 20, figs. 11,12) was illustrated from this unit. Eifeiian gastropods are especially diverse in the Cascaden Ridge unit. A gastropod faunule (USNM 38775) from a readout on the north side the Elliott Highway, 5.3 miles (3.3 km) S. 40° E. from Livengood (loc. 80) produced 35 species (Blodgett, 1992). Several of these species also occur in the coeval upper part of the Cheeneetnuk Limestone in the McGrath quadrangle, west- central Alaska. Conodonts from two samples of limestone in the Cascaden unit near USNM 38775 indicate an australis Zone age (middle Eifeiian). In summary, the most diagnostic fossils, including gastropods, trilobites and conodonts, indicate an early Eifeiian to Givetian age for the Cascaden Ridge unit.
The Troublesome unit (Dt), a recrystallized chert and siliceous argillite, probably stratigraphically underlies the Quail unit (Dq). Thus far, the only fossils recognized from this unit are recrystallized radiolarians seen in thin sections (Iocs. 96-99). Lithologically, this unit is comparable to the McCann Hill Chert of the Charley River quadrangle (Brabb and Churkin, 1969) and may be part of the same fades belt which was offset along the Tintina fault system.
The Quail unit (Dq) overlies the Troublesome unit stratigraphically. Limestone buildups (Dql) immediately above the Troublesome unit have yielded conodonts and rugose corals of early Late Devonian (Frasnian) age. A diverse, silicified, coral-rich fauna occurs at locality 110. This biostratigraphically diagnostic assemblage is of late Frasnian age (J. Sorauf, written communication, 1989). The remainder of the Quail unit is of Frasnian age or younger, comparable to the Nation River Formation of east-central Alaska (Brabb and Churkin, 1969). Carbonate ciasts from an areally restricted conglomerate in the Quail unit produced Middle to Late Ordovician conodonts (loc. 104).
UPPER PALEOZOIC
Only a few fossil localities, mostly of Permian age, are known from the upper Paleozoic sequence (PDms). This sequence includes one small area that produced diagnostic late Famennian conodonts that may be either indigenous or redeposited (loc. 113). A number of collections contain invertebrate fossils, mainly bryozoans and moilusks, that indicate a possible Early Permian age for a dominantly clastic sequence in the western part of the quadrangle (B-6 quadrangle). All but two of these localities are from the Ps map unit (Permian sedimentary rocks). The two localities from the PDms unit (Iocs. 114 and 115) contain elements of the same fauna and at least this part of the unit is probably Permian. Most of these collections were called Mississippian by G.H. Girty in the 1930s. These collections were restudied and reevaluated in the 1970s by Dutro who suggested the Permian assignment. The Rampart Volcanics also have yielded Permian fossils, but some collections of radioiarians and conodonts from sediments interbedded with the volcanics are Middle or Late Triassic. The Circle Volcanics in the Circle quadrangle are coeval with the Rampart Volcanics and have yielded radioiarians of Mississippian age (D.L Jones, written communication, 1981).
MESOZOIC
Five Mesozoic units are shown on the geologic map of the Livengood quadrangle (Weber and others, 1992). Few fossil localities have been found in these units. The oldest unit (aside from the Rampart Volcanics) consists of Triassic sedimentary rocks (Is) and is known only from two outcrops that are fortuitously exposed beneath the Beaver Creek thrust fault. One of these lies along Beaver Creek and the other is on strike with the first, about 21 miles (34 km) to the northeast, near the boundary of the Livengood and Circle quadrangles. * Conodonts from both localities are of Permian or Triassic age (Iocs. 132 and 133). The unit is assigned a Triassic age because of its striking lithologic resemblance (phosphatic, calcareous black shale, calcareous sandstone, and sandy limestone) to both the lower Triassic part of the Glenn Shale and the Shublik Formation (Triassic) widespread, respectively, in east- central and northeastern Alaska. Thus far, no fossils have been found in the Vrain unit which ostensibly overlies the Triassic unit. The Vrain is lithically comparable to the upper Qlenn Shale of the Charley River area (Brabb and Churkin, 1969).
The Vrain unit, however, appears to grade up into the Wolverine quartzite unit which is of Late Jurassic or Early Cretaceous age. Several fossil collections from the Wolverine quartzite unit produced an indeterminate pelecypod coquina. One collection, made by J.B. Mertie in 1922 (loc. 134) and reexamined by D.L. Jones in 1980, contains forms which Jones considered possibly Jurassic. Another collection (loc. 140) contains pelecypods indicative of an Early Cretaceous age. Some of the early collections were reexamined by Imlay and Reeside (1954, p. 236) who state that "Earliest Cretaceous not younger than Valanginian is possibly represented in the Hot Springs-Rampart districts, as indicated by some small aucellas (Mes. Iocs. 11390, 11391, and 15981) similar to A. sublaevis Keyserling (now Buchia sublaevis (Keyseriing)). The preservation of the auceilas does not permit positive identification, but their plump shape suggests an Early Cretaceous rather than a Jurassic age." Thus, in the Livengood quadrangle, the Wolverine quartzite unit may straddle the Jurassic-Cretaceous boundary. The most diagnostic Mesozoic fossil is from the Wilber Creek flysch unit. For many years the only fossils found in this unit were poorly preserved Inoceramus? fragments of Jurassic or Cretaceous age and poorly preserved gastroplited ammonites, in 1989, Samuel Dashevsky collected a well-preserved gastroplitid from the Wilber Creek unit and donated it to the U.S. Geological Survey (loc. 148). The specimen, identified as Paragastroplites flexicostatus by J.W. Miller, is a middle Albian form known also from northern Alaska.
Various collections of invertebrate fossils from the Wilber Creek unit in the vicinity of Wolverine Mountain have been assigned a Late Cretaceous age (Mertie, 1937). Late Cretaceous plant fossils have also been described from Wolverine Mountain. The localities for most of these old collections are uncertain. Some sites seem to be very close to those know to be Early Cretaceous. Some collections may have been misidentified as Late Cretaceous. There is, however, a thin stratigraphic unit (Minto unit, Km) of shallow-water origin that is less altered than the Wilber Creek. These beds have an irregular areal distribution, are inferred to lie unconformably on older rocks, and may be the source of at least some of the younger Cretaceous collections. In 1987, indeterminate plant fragments (Iocs. 150 and 151) were collected from this unit from a basin south of Wolverine Mountain.
TERTIARY Between 1896 and 1906, Tertiary plants were collected by U.S. Geological Survey geologists in the LJvengood quadrangle, notably from coal-bearing strata on the Yukon River at the mouth of Hess Creek (LJvengood C-6 quadrangle). Coal was mined there for use on sternwheeler steamships plying the river. The site was known as the Drew mine, a name which still appears on some topographic maps, although mining operations ceased many years ago with the demise of the big river boats. The macrofossils were listed by Hollick (1936) in his summary of the Tertiary floras of Alaska and were discussed by Mertie (1937). More recently, these rocks were sampled for pollen. The floras are of early Tertiary age (loc. 156), probably Eocene, and indicate a relatively warm temperate climate (T.A. Ager, written communication, 1989). Although the Livengood quadrangle area probably contains widespread poorly consolidated gravel deposits of late Tertiary age (part of QTg), only one exposure has recently been dated by fossils. Pollen of Pliocene or possibly late Miocene age were recovered from an organic-rich silt layer in gold-bearing gravel from the Livengood Creek valley (Karl and others, 1988; this report loc. 158). This deposit of limited extent is shown as Qg on the accompanying map because the valley sediments have been greatly disturbed by placer mining. QUATERNARY
Literally tons of Pleistocene mammal bones, both large and small, have been recovered from interior Alaska, including the area of the Livengood quadrangle, but most of the material was not documented by local placer miners. However, from the late 1920s to the 1950s, extensive mammalian collections were made by O.W. Geist on behalf of the American Museum of Natural History and the Museum of the University of Alaska. Faunal and floral lists and a summary of the earlier work are given in P6we" (1975). Two Pleistocene sample sites documented by P6we (1975) are listed in table 1 (Iocs. 159 and 160). In 1948, a frozen and mummified head and foreleg of a baby mammoth were found on Fairbanks Creek in the LJvengood A-1 quadrangle. This much publicized discovery was rescued and preserved by O.W. Geist. Also found on Fairbanks Creek in the LJvengood quadrangle were: the mummified foot of a young mammoth, a female bison, and a rabbit. Other mummified 7 prehistoric finds include: a large bull steppe bison on Dome Creek; legs of a stag moose on Little Eldorado Creek; legs of a bison on Cleary Creek; legs of a bison and caribou on Upper Cleary Creek; and parts of two moose in the LJvengood area at Mile 60.5 on the Elliott Highway (Guthrie, 1990, p. 37-44). The best preserved, well-described find is a large male Bison priscus, called the "Blue Babe" after Paul Bunyan's ox; it is colored by of blue vivianite, a common coating found on Alaskan Pleistocene bones (Guthrie, 1990). This discovery was made on Pearl Creek in the Fairbanks Creek area, just south of the boundary of the LJvengood quadrangle. Guthrie's book on "Blue Babe" addresses many of the problems of late Pleistocene faunal and floral distributions in Alaska.
REFERENCES CITED Blodgett, R.B., 1992, Taxonomy and paleobiogeogra'phic affinities of an early Middle Devonian (Eifelian) gastropod faunule from the LJvengood quadrangle, east-central Alaska: Palaeontographica, Abt. A, v. 221, p. 125-168. Blodgett, R.B., and others, 1987, A Late Ordovician age reappraisal for the upper Fossil Creek Volcanics, and possible significance for glacio- eustasy, in Hamilton, T.D., and Galloway, J.P., editors, Geologic studies in Alaska by the U.S. Geological Survey during 1986: U.S. Geological Survey Circular 998, p. 54-58. Blodgett, R.B., Zhang Ning, Ormiston, A.R., and Weber, F.R., 1988, A Late Silurian age determination of the Lost Creek unit, LJvengood C-4 quadrangle, east-central Alaska, in Galloway, J.P., and Hamilton, T.D., editors, Geologic studies in Alaska by the U.S. Geological Survey during 1987: U.S. Geological Survey Circular 1016, p. 54-56. Brabb, E.E., and Churkin, M., Jr., 1969, Geologic map of the Charley River quadrangle, east-central Alaska: U.S. Geological Survey Miscellaneous Geologic Investigations, Map I-573, scale 1:250,000. Chapman, R.M., Weber, F.R., Churkin, Michael, Jr., and Carter, Claire, 1980, The LJvengood Dome Chert, a new Ordovician formation in central Alaska, and its relevance to displacement on the Tintina fault: U.S. Geological Survey Professional Paper 1126-F, 13 p. Churkin, Michael, Jr., and Brabb, E.E., 1965, Occurrence and stratigraphic significance of Oldhamia, a Cambrian trace fossil, in east-central Alaska, in Geological Survey Research 1965: U.S. Geological Survey Professional Paper 525-D, p. D120-D124. Guthrie, R.D., 1990, Frozen fauna of the mammoth steppe: Chicago and London, The University of Chicago Press, 323 p. Hofmann, H.J., and Ceciie, M.P., 1981, Occurrence of Oldhamia and other trace fossils in Lower Cambrian(?) argiliites, Middery Lake map area, Selwyn Mountains, Yukon Territory, in Current Research, Part A, Geological Survey of Canada Paper 81-1 A, p. 281-290. Hollick, Arthur, 1936, The Tertiary floras of Alaska: U.S. Geological Survey Professional Paper 182,185 p. Imlay, R.W., and Reeside, J.B., 1954, Correlation of the Cretaceous formations of Greenland and Alaska: Geological Society of America Bulletin, v. 65, no. 3, p. 223-246.
8 Karl, S.M., Ager, T.A., Hannemann, Karl, and Teller, S.D., 1987, Tertiary gold- bearing gravel at Livengood, Alaska in Hamilton, T.D., and Galloway, J.P., editors, Geological studies in Alaska by the U.S. Geological Survey during 1987: U.S. Geological Survey Circular 1016, p. 61-63. Lindhoim, P.M., and Casey, J.F., 1990, The distribution and possible biostratigraphic significance of the ichnogenus Oldhamia in the shales of the Blow Me Down Brook Formation, western Newfoundland: Canadian Journal of Earth Sciences, v. 27, no. 10, p. 1270-1287. Martin, G.C., 1926, The Mesozoic stratigraphy of Alaska: U.S. Geological Survey Bulletin 776, 493 p. McAlester, A.L, 1962, A new Devonian pelecypod from Alaska and its bearing on pterioid phyiogeny: Postilla, y. 58, 13 p. Mertie, J.B., Jr., 1917, The gold placers of the Tolovana district, Alaska: U.S. Geological Survey Bulletin 662-D, p. 221-277. ___1937, The Yukon-Tanana region, Alaska: U.S. Geological Survey Bulletin 872, 276 p. Oliver, W.A., Jr., Merriam, C.W., and Churkin, Michael, Jr., 1975, Ordovician, Silurian, and Devonian corals of Alaska: U.S. Geological Survey Professional Paper 823-B, p. 13-44. Ormiston, A.R., 1972, Lower and Middle Devonian triiobite zoogeography in northern North America: 24th international Geological Congress, Section 7, p. 594-604. P£we, T.L, 1975, Quaternary geology of Alaska: U.S. Geological Survey Professional Paper 835,145 p. Prindle, L.M., 1908, The Fairbanks and Rampart quadrangles, Yukon- Tanana region, Alaska: U.S. Geological Survey Bulletin 337,102 p. ___1913, A geologic reconnaissance of the Fairbanks quadrangle, Alaska: U.S. Geological Survey Bulletin 525, 216 p. Prindle, L.M., and Hess, F.L, 1906, The Rampart gold placer region, Alaska: U.S. Geological Survey Bulletin 280, 54 p. Rigby, J.K., Potter, A.W., and Blodgett, R.B., 1988, Ordovician sphinctozoan sponges of Alaska and Yukon Territory: Journal of Paleontology, v. 62, p. 731-746. Robinson, M.S., 1983, Bedrock geologic map of the Livengood C-4 quadrangle, Alaska: Alaska Division of Geological and Geophysical Surveys, Report of Investigations 83-4,1 pi., scale 1:63,360. Weber, F.R., Wheeler, K.L, Rinehart, C.D., Chapman, R.M., and Blodgett, R.B., 1992, Geologic map of the Livengood quadrangle, Alaska: U.S. Geological Survey Open-file Report 92-562, scale 1:250,000, 20 p. + 1 sheet. Table 1. Fossil collections from the Liven good quadrangle All localities listed below are shown on the accompanying map by a numbered black triangle; open triangles shown on the map indicate barren conodont samples that are not listed below.
STRATKaRAPHC UMK LftJ^P FELDNO. LATITUDE ttJ FOSSLS ^ AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.' (USGSCOUH) LONGITUDE W. (QUADRANGLE) Wtokarsnam unit (lata "1 21AMH52 85«53'42'/ Traca fossils: Pracambrian-Cambrlan Ft Ruadamann. pra-1937; Protarozlc and aaritoat 147«43'12' (D-2) Ottiamia Mlcnaal Churkln. 1968 Cambrian: - Zwg) Wfckarsnam unit (lata 2- 88ACn(?) aS'17'38'/ Stromatolites BlostratlgrapnicaJiy M.A. Samtanatov. 1989 Protarozle and aaritoat 148' 10*49' (B-3) nondlagnosttc Cambrian: -CZwa) Fossil Craak Voicanics '3 15AB211 85'37'30'/ Brscnfopods: Early Ordovlcian Edwin Kirk and E.O. (Early to Lata (1519A) 147*11 '42' (C-1) UnguM!**?. Ulrich. pra-1937 Ordovidan; Ofv) Trllobltaa: f 40noafus sp.< SatnyumMua?. Mooatasptf? so. (7359-CO) Brscnfopods: Early Ordovidan M.E. Taylor and AJ. ScMza/noon sp., dkJU4iatoid Rowall, 1972 Ban. and sp. Indaf., InQutoW, gm.tndsp.lraM. MothMks: fl^V^ttTip. ProbtofiMOlca: ClMjfeflMSp. Trilpbitcs: ct Otltfmtit tp, CJMmdto sp, GangntMtiMtp.. ?Pra«pMD*»p/MA« sp.. flwudsgnosn* sp.. asaphoU, jon and sp. indst., oianoM, gan andsp. Indat ConodonBi Early Ordovidan (middto or J.E. Rapatskl. 1976 AcanthodiMtit. A. Mnaafus. lata Tremadoctan) (ravlsad, 1992) Coidytadui anguMua, C. /ntanTMd/ua, DnpmodtMl sp.. PutodUc tpuriu*, Olitodiur triangular*. . PampamJarodm ynditt, Seoiopoduf d. & flbaut. MrteMtooonw AaMtorf CAW *4 87ABd66 QS'39'35'1 rfflnodonB! Early Ordovtdan (early or XG. Hams and R.C. (10855-CO) 147»08'30* (C-1) Cof&ylodtM Hndttntni, middto Tramadodan) Omdortt. 1988 EucunoUomui imcApaaAarwK, "Oistodiur trimgulfris, Rouodu* IMN*. r«riflbr*t« mlumuni, Vartatttocam* art. V. teastarf CAI-5.S *5 87ABd69 65«39'32-/ xjnodons: Early Ordovidan (middla J.E. HapatsM. A.Q. Harris, 106S6-CO) 147MV09* (C-1) Cordyiodug JntannadAja, Tramadodan: C. angulatut and R.C. Omdorff, 1988 BucunoUomui nolcApafltarwK, Zona) 0/arodtW tritngularls, TeridontiM d. f. nafcamuraf. UtaAoonuc utatanait or /taaoduKlanuk CAUS-S.S 6 SAB262 e5'32'08-/ Corato: Mkldto Ordovidan according Edwin Kirk, pra-1937 152001) 147'31'58* (C-2) Strapiaiaama sp. o Edwin Kirk [probably Lata Ordovidan by 1993 JafcnanaOa sp. conoapts] Rhynchotnm* so. 68ACh296 wanODOnB.%,MMwfeW^B. Middto or Lata Ordovidan J.W. Huddto, 1969 6709-CO) JModina sp., O/vpanoduv sp., Patodtvsp, PMdanooluisp. CAI-5.5 09AJ70 8S«37'17'/ Brachtopods: Middla Ordovidan (Trenton) Edwin Kirk, pra-1937 09AP87 47'21'15' (C-1) Dtnorth* sp.. Pf0ctam6onAa« Kscordlng to Edwin Kirk 1S19C) caffeaua. var., P. sp., probably Lata Ordovidan by 1993 concapta] Vmnoocrypa sp.. /gyncftoMHia frKnaoaacam. var^ rrfptactesp. CoraJa: SMaptataama ruttlcum, S. sp^ CoNjmnarfa Patoop/y/liim) (town C.? p^Ha/pftaa oracMa, var.
iadkMMf? sp, Raphlttamlnm p. TriloWtas: Rhombouypu tp.. Tttpfeda so. Rhynettctnm* Corate: StnptatMtmf? tp.. Cokmnmrim (Patoophyllum) . thomt, C.7 tp.. Htfyfimf sp. Trilobltaa: Caiman* so.. IsoWus sp. 09AP87 Corals: Lata Ordovldan W.A. Ollvar, Jr.. 1972 (7092-CO) Chmauttponf so. cJL 'C' »Uounomn*t». Sardnul* sp. 68ACnl761 Corals: Lata Ordovidan W.A. Ollvar. Jr.. 1972 (7093-CO) Chmmtmtlpoof sp. cJL "C.m aiswMfwiala, Pafaaotevoaiaa so., cerloid ruaosa coral *86ABd5; Bracntopoda: Lata Ordovidan (Ashgilllan) R.B. Blodgan, A..G. Harris, 86ABd60 ana K.C. uanwar, U.M. (10429-CO) Plmtyttrophlm sp., Rohr. 1986 Inartlculata brachlopods (both llngukXds and trimara4lids), bracntopods ConodonK B»taUnm sp. IndaL CAl^ Corato: C/UMMtfponisp. \aasDvpaoa.O ^ »«MM4W^ . Uotptrm sp., Uacturitof sp.. 86AWr142A ^onodonB: lota Mlddla to Lata A.G. Harris, K.E. Danklar, (10430-CO) Ordovidan (Blacfcrivaran to 1 WOO yV)»a«asp^SMbo*Msp.. Gamacnian) Oapciodua? sp.. Panotoodut P. CAI^.5 87ABd64 ^onodonB: lata Middla to Lata A.G. Hams, 1988 (10837-CO) °anoiaroduf sp.. Ordovldan (Blacfcrivaran to ^ udooataoHrM ct. P. oUspanaa CAI.6-5.5 '8 86ABd4 (10428- 66«37 >23V Bracntopods: Lata Ordovidan (Ashgtllian) R.B. Blodgao. A.R CO) 147«20'38' (C-1) HkMbrnyncnu* n. sp. Ormfston. A.G. Harris, and /onodonM: K.E. Danklar,. 1986 Bmtodlnm sp. indat. of Lata Oidovtdan morphotypa CAI-8-6.5 Triioblta: Xnatapnrui? sp. Cbnotia n. so. 9 86ABd2 65*36'34V Xmodorssi Mlddla to Lata Ordovioan A.G. Hams and K.E. 10427-CO) 47*1 9'02« (C-1) SModtoasp.. Danklar, 1986 Aroropandafodus? sp. CAI^ 0 82AChS3B 86'03'37V Goodmda.* Ordovidan D.L Jonas. 1984(7) 3402) 49«38'05' (A-6) Uvangood Dome Chart 1 79ACn543 66«48'12V Radtolaria. poor spharas. » D.L Jonas, 1982(7) (Ordovidan; Otd) 2023) 47*1 9'SO' (D-1) sponoa spteulas 2 87ANk123B 86«42'48V ioodopoduv oottasr Early to aartiast Mlddla A.G. Hams and R.C. 10680-CO) 47M3'42' (C-2) CAI.6-5.5 Ordovldan Omdorff. 1988 3 87ASK224A 86«42'48V Phosphauzad ostraooda Dfdovioan to Racant A.G. Harris and J.M. 47'47'IB' (C-2) stalnkama Bardan. 1988 *1 4 71ACA391 and 6S«31'51V Graptolllaa: Lata Ordovidan ClaJra Canar and W.BX. othan, Univ. 48«50'40' (C-4) A/ticawoofuptuf n. TP A. A n Barry, 1971 hlaska sp. B. A? sp^ CMmmcogrmptua aft. C. «Mpamut or art. C. Moom* muantatui. C. nomarua s.L. C. ax or. C. scaisrus, C. spp., Hptogrmptuf sp.. jfyptognpttM art . G. anukatnuR. G. sop. 70ACH238 Sponoa spiculas. Indudtng Paleozoic Bontta Murchay and Paukt nonaxon, ojcyhaiacilna, and ctub-shaoad forma 84AWr»7 )nlO¥tclafi J.T. Duro, Jr.. 1986 iMfate cr AnameUmm and ndatarnHnaia RaoTolarta 5 63AWr80 S'36'00'/ Radtolaria. poor spftaraa arty Pataozoic D.L Jonas. 1982(7) 48«2V50' (C-3) tl STRAHGRAPHC UNH MAP FELDNO. LATITUDE N7 FOS9LS >CE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* (USGSCOLLH) LONGITUDE W. (QUADRANGLE) Uvangood Dome Chert 16 71AWrS23B 65*35'28*/ Radtalarla, poor spnaraa ? D.L Jonaa. 1982(7) (Ordovfdan; OM) 148«27*30- (C-3) Amy Creak unit 17 1SAB338 65*46f i6v StroniatoporaMz Paleozoic Edwin Kirk, pra-1937 (Protarozoic? to (1522A) 147«09"20- (D-1) Slromalopara? Silurian?: SZa) 18 79ACM95 (1344) aS'46'37*/ Radtolarta, poor pharaa ? D.L Jonaa. 1 981(7) ^47 or^7 (D-1) 19 79ACh104 65-47M4V Poorly praaarvad Radtolana, ? D.L Jonaa. 1981(7) M210) 147-1 3'09- (D-1) sohanM and conas 79ACnS72 Radtolarta. spharaa ? D.L Jonaa. 1981(7) (2024) 20 8SAWr64A 6S«32'18V Radtolaria obaarvad in thin Paleozoic C.D. Bloma. 1990 148«26'44- (C-3) sactton. Indatarmlnata 21 63AWr87 aS*30'23V Radtolaria, racryatalllzad. ? D.L Jonea. 1982(7) 148-33'08- (C-4) Indatarmlnata 22 90AWM3 aS«30'27'/ Radtolaria obaarvad In hand Paleozoic F.R Weber. 1990 148«36'4(T (C-4) seedmana Loat Creek unit (Silurian 23 18AOF8 6S*30'S4V Citnoldstama Miaalaalpplan(?) G.H. Glrty. pre-1937 and Devonian; DSI) 148«SV17* (C-4) Bryozoana: Oalof loffiaia ap. Drvcniopuua.H«»iAln«i nr^ Athvrtt so. Corato: Silurian or Devonian Helen Duncan. 1962 Blanching favoaitlda. Za/bonv//um? 62AH0216 BracMopodai Silurian or Devonian J.M. Berdan. W.A. OKvar. An/paap. Jr^ and E.L Yochaiaon, Corato: 1983 MeMottacsp. Plaurotomariacaan? >x]nodona): Dfdovioan to Devonian J.W. Huddle, 1983 PandaroOta- ap^ OzartooWta? P. CrinoW stama 64AWr292 ^Qnodorai: Early Ordovictan to middle J.W. Huddle, 1966 Ofctaoxfttt Silurian 71ACn21 Pandarodua ap^ paJtoortorm MMdto Ordovtoian to A.G. Harm, 1976 alamanta Silurian jracfifa^Kktu middle Sllurlan(?) J.T. Dutro, Jr., 1976 GlmsM to., UButrypa «p.. Ptoctatma? so. 8SAWr2 rfQnodonm Silurian to Middle Devonian K.S. Schlndlar. 1985 (11148-SD) "andanxfua ap.. Indat bar fragment of pott-Ortovidan morphotypa CAI»4 86A8d28 xjnodom; late Early Silurian to Early A.G. Harm and K.E. 11437-SD) Ozartnoaia axcavaM Devonian (Wentocktan to Dankler. 1988 CAJ-4 early Emalan) *87ABd79 Brachtapoda: late Early to early Late R.B. Blougafl and Ning AncHctofchttCLA. Silurian (Wentockian to Zhang, 1987 snamonamta, Eospinatrypa Ludlovlan) ap.. GyptfUMi ap.. flypiduUnid alt GjrpttuMna ap..n. gan.? gypidullnid (aff. GyptduUni). JanNMT? ap.. L»pu*n* to., Unguia ap^ Unftryps? «p.. Malaptaate ap^ S00avwKa d. J. magmficaAwniia, Splrigfrinm? ap.. Sptrinotla ap. Trliobltaa: late Early to early Late A.R. Ormiaton, 1967 Contncttatrunj* n. ap. Silurian (Wentockian to Ludlovlan?) 24 87SK192A 65'36'48v «QnodoraK Addle Ofdovician to Middle A.G. Harm and FLC. 148'28'OQ* (C-3) ^ ndaroota) ap. Devonian Omdortf. 1988 CAI-6.S Cotovana Limestone 25 86A8d1 6S*38'33*/ vonoDona).StaMwfeM^B. Silurian R.B. Blodgan. A.G. Harm, Early Silurian to Middle 47«20'02' (C-1 ) Kbctotoia ap. or Outadug ap.. and K.E. Danklar. 1986 tevonian: DSt) Pardaroduiap. CAI-5-S.S Smooth panuunarotd brachtopoda, favoartld corala. coral 26 SAB262 as-32'oa-/ Coraia: Silurian Edwin, Kirk, pra-1937 1S2002) 47*31 'SB* (C-2) Faioaaavao. 68ACh296 >oraiaz Silurian W.A. Olvar, Jr.. 1968 8302-SD) RrornaiooofoW? fe^tf^i^^^^^te* Silurian J.T. Dutro, Jr., 1972 71AWrS21-68 Silurian I.T. Dutro, Jr.. 1972 STRATIGRAPHC UNN MAP FBI) NO. LATITUDE N7 FO6SLS AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.' (USGSCOLLH) LONGITUDE W. (QUADRANGLE) e5»32'06'/ Totovana Limestone 26 *86ABd27 Pantamanxd brachtopods Eari^ Silurian (early or A.G. Harris. K.E. Denkter. (Early Silurian to Middle (11438-SD) 147»3V58' (C-2) Corals: middle Uandovertan) R.& Btodgett. and RJ. Devonian; OSt) SftsyUateMM so. Ellas, 1986 Conodorai: Dktomodui sp. or IcriocMI* spn Outodu*? tp., OzuttotMn* natal OztrtuxOnt el. O. oUftamenaat, OzarftoaMa sp.. Pmtorodu* sp.. WaiiferodtM sp. CAI-S-5.5 27 09AJ82; 09AP94 6S*36'03*/ Silurian Edwin Kirk, pre-1937 147»23'13- (C-1) ConcnWfc/m? so. 1SAB237 Bracntopods: Silurian Edwin Kirk, pre-1937 (1S20A) CancnUkjnr? sp. CrlnoM oolumnato 28 60REC F-4, Urtv. 65«37127V Corals: Silurian or Devonian W.A. Oliver. Jr.. 1961 Alaska 147«26'50" (C-1) Fatoatavso. Silurian J.T. Dulro, Jr.. 1961 Panfamafu* or Coochkllum 29 60REC F-3. Urtv. 6S»37'43-/ Corals: Silurian to Carboniferous W.A. Oliver, Jr.. 1961 Alaska 147»26'47- (C-1) Scr/noooora? sp. 30 60REC F-2. Univ. 65*36'58*/ Corals: Silurian or Devonian W.A. Oliver, Jr., 1961 Alaska 147»17'42" (C-1) fatoatfatsp. 31 60MCO F-1. Univ. 65»34 f 18V Corals: Silurian or Devonian W.A. Oliver, Jr.. 1961 Alaska 147«29'05* (C-1) favorite* so.. Fatoarfaer? so. 32 60REC F-1. Univ. 6S»37'58-/ Corals: Silurian or Devonian W.A. Oliver, Jr., 1961 Alaska 147M9-10' (C-1) favorite*? so. 33 86ABd22 6S»37'28V Pantamaroid brachiopoos and Silurian FLB. Blodgett. 1986 147-21 '40* (C-1) «ronuBoporo(ds axposad In cress section '34 15AB215 65«37'36*/ Brachtopods: Silurian (middle or Late) Edwin Kirk, pre-1937 (15198) 147»13'40B (C-1) Atrypt? sp^ Conchtdium sp.. Tiim»r»H* sp. Corals: Cyathophyllum sp.. Dlptiyphyllum sp. Crinoid cokimnals Mollusks: Afagaiwnpnate? sp.. Mbdbmorpna sp. '35 86ABdl3 65«37'45'/ 3rachtopods: middle to Late Silurian R.B. BJodgen. A.G. Harris, (11432-SD) 147»12'58B (C-1) Mrypa sp.. ribbed and K.E. DenWer. 1986 pentameroid =«vositld coral ^onodorss: Qzarfeodfna axcavaca, ^anoaradUv sp. CAI-5.S 36 1 5 AB2S6 65'32'39V Brachtopods: Silurian Edwin Kirk, pre-1937 1S20B) 147»28*33' (C-1) Cforfmtt? so. 37 60MCD F-2. Univ. 65'34 f20*/ xirals: Silurian or Devonian W.A. Oliver. Jr.. 1961 Alaska 147-30-34- (C-2) FavocAa*? so. 38 68ACn1861B 65'33'50V Corals: Ofdovidan to Devonian, W.A. Oliver, Jr.. 1972 8920-SD) 147»30I02> (C-2) Macofevocte* sp.. probably Silurian Patoaotevosira* so. 68ACni861C Corals: Silurian W.A. Oliver. Jr.. 1972 8921-SD) Cafen/pera? sp.. favoeitoid. HeHolitosI so. 39 71 AWrS20A 65«33'02'/ Srachtopoda: Silurian J.T. Dutro. Jr.. 1972 47»30'54- (C-2) Penfameru* so. 40 60MCD F-3. 65*32'49*/ Corals: Late Ordovtaan to middle W.A. Oliver, Jr.. 1961 Univ. Alaska 47»30'40' (C-2) cL Palaeophyllum. tavosrtokJ Silurian, probably Silurian coral *4 1 68AGR431 eS'32'25*/ Corals: Silurian W.A. Oliver. Jr., 1968 8300-SD) 47«3V40- (C-2) Favosltat so.. HaVriTa* so. arachtopods: Early Silurian J.T. Dutro. Jr.. 1972 Wenlocklan) xvodorai: Middle Ordovidan through A.G. Harris. 1986 OUbduasp. Met. Pandarodu* Mtidto Devonian P. CAU4.5-5 '42 86ABd6 (11431- 65»30'57V /onodorai: Early Silurian A.G. Harris and ICE. SO) 47«34'36- (C-2) Dtttomodu* sp. or tcriodeU* Uandoverian or DenWer. 1986 sp^Panoaroduvsp. Wenlocklan) CAI-6.5 43 86ABd8 65*30'53*/ Lamellar suomatoooroids Silurian or Devonian FIB. Btodgett. 1986 ^^.^nosma *««k^ 44 S3AB02S (6383- 6S»17'16V SD)' sorets: Middle to Late Devonian? WJV. Oliver, Jr.. and Helen 48*09'00' (8-3) CoflMmartosp. Duncan. 1950 Atnohloon so. 63AWM35 Stramatoporoids: Mktdto to Late Devonian W.A. Oliver, Jr.. 1963 7162-SD) Amohtoom so. STRATIGRAPHC UMI tAAO FEU) NO. LATITUDE HJ FOS8LS A£ IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* (USGSCOUH) LONGTAJDEW. (QUADRANGLE) Totovane Limestone *44 64AWr314 65*1 7*1 6V Corats: MUga Davoman W.A, Oliver. Jr.. 1966 (Earty Silurian to Middle (7341-SD) 148*08*09* (B-3) Dfndmmi* (Column***) Devonian; OSt) /fMnana 67AWM 70 Coral*: Probably Middla Devonian C.W. MerrUun. 1972 (8922-SD) OanoVocraMi or Ptlutophyttum. LyrioHumtl, Syrtnyopon TantaculltWs: TtntfculMat Ostreoodaa? Corals: Mttdto Devonian W.A. Oliver. Jr.. 1972 Oandnostatfi sp. ct 0. rfwnana, Sxrfngpponrsp.. 71AWM89 Corals: MUdla Devonian W.A. Oliver. Jr.. 1971 OanotaMMtosp. d. 0. rnanana *45 76ACh206 65»17*38V Corals: MUdla Devonian W.A. Oliver. Jr.. 1976 (9894-SO) 148*09*04" (B-3) Cladopomsp.. Oandnawwtoso. AfnphipoM sp^ maMiw) stromatoDoroid 46 60ATb178 65*05*31 V Corals: Devonian W.A. Oliver. Jr.. 1965 148«S5*49' (A-4) Brachlopoda. undat. 47 86ABd42 65*29*1 8V Undatarmlrwd dandroid Silurian or Devonian RB. Blodgett. 1986 147»32*57- (B-2) tabUat* corals 48 86AB441 65*29*07V ComdonB! Silurian to Early Devonian A.G. Harris. K.E. DenMer. (11442-SO) 147'33'OS- (B-2) OzaftooHna sp. Indat., and R.B. Blodgett. 1986 Panotarodui sp. IndaL CAI-5-5.5 Sastreood. undat 49 60MCO F-S7. BS^S'SSV Brachlopoda: Probably Silurian Helen Ouncan and J.M. Univ. Alaska 1 47*35*1 0" (B-2) Pantamavut sp. Bendan. 1960 ^orals: fawMiratsp. SO 04P240-346 65 (28*34V 3rachlopoda: Silurian Edwin Kirk, pre-1937 147«35'41' (B-2) ConcMQHwn? sp. Coral*: Cymtttophyllum sp.. Favoetiai ct F. tonuM, F. d. F. ntagam**, F. tp, Zaphnnti* so. 51 04AP192-195 85*27*51 V Datracodas: Silurian or Devonian Edwin Kirk, pre-1937 147*36f45- (B-2) Cythenilm*?- Bryozoana: FVkxUctyf d. P. Irondotm Morals and siromaioporoids: Clmdoporm sp^fimoctfa* d. F. llmttaris, Stromatopora so. 52 04AH186 65*27*48V Corals: Silurian Edwin Kirk, pre-1937 47*36*33" (B-2) FavoattM sp.. Cladopon so. 53 21AMI33 65»27'08V irachtopods: Silurian Edwin Kirk, pre-1937 47*44*10' (B-2) Clortndal sp. 54 86ABd58 65*22*1 7V Jndatarinlnad dandroid Silurian or Devonian R.B. Blodgett. 1986 47*55*53- (B-2) abulata coral* 55 86ABd44 65*29*30V 3avacodas: Devonian (possibly Middle) J.M. Berdan and R.8. 47»32*50- (B-2) Martirw sp. Blodgen. 1986; jastrapods: J.M. Berdan. 1987 Stnpmrotluf (n. subgen.) sp. afl. S. (S«rpuk»plra). Indat hloh-soired form Schwatka unit (Early and 56 29AMI54 -65'53'06V /orate: jevorwn^MMMM^M Edwin Kirk, pre-1937 MMdlo Devonian; Dsl) -147M5'35' >UMSoflTM sp, dtOopon sp, D-1) Cyathophytum sp, Favoaitof SP. 57 29AMI64 -65»53*22V CrinoM columnals )evoman Edwin Kirk, pre-1937 -147*1 6*02- D-1) 58 70AWM81 65'55'57V ttioniaiopoioid*: )evonian (Eifeilan to W.A. Oliver. Jr.. 1971 47»10*05- (D-1) AmohtooraiQ. Frasnlan?) 59 9ACh231 5»55'43V itfomatopoiolds: Devonian (ElfaUan (o W.A. Oliver. Jr.. 1971 8735-SD) 47"12*10" (D-1) ntnpnmtOlmm , fc 1-, m -^ mfSO.* Frasnlan?) 0 9ACh233 5'55*55V Devonian (EifeMan to W.A. Oliver. Jr.. 1971 8736-SD) 47»13*20" (D-1) \niohlooiu so. Frasnlan?) 1 86ABd37 5»55'49V Two-hot* erinoid ossldaa, Early or Middle Devonian A.G. Harris and ICE. 11440-30) 47*1 0*50" (D-1) IndaL oonodont fragmanta (Emelan or EltoHan) DenUer. 1966 CAUS.5 2 6AB438 5»55*53V AjnuDunsv.kjv««w^^«iai* Early or Middle Devonian A.G. Harris and ICE 11441-SD) 47«10*52- (D-1) (Emalan or EltoHan) DenUer. 1966 iAI-5.5 'wo-hoia crindd oasldaa 3 OACh30t 5'56'OOV Itfomatoporoids: Devonian (EltoHan or older W.A. Oliver. Jr. 1971 8737-SD) 47"1VOO* (D-1) Amehtoomn. o Frasnlan?) 14- STRATIGRAPHC UN! MAP FEU) NO. LATITUDE NJ FOSSfLS AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* (USGSCOLLH) LONGITUDE W. (QUADRANGLE) Scnwatka unit (Early and *64 8SAWr67 6S'SSf 53V ConodonM: Eanf^ir Middle Devonian A.G. Harris. 1986 Middle Devonian; Dsl) (11170-SD) 147*1 VSe* (D-1) SefcdMte sp.. leriodm sp., (late Emsian or Elfellan) AtaopandtofDdua sp. or PandanooUi sp.. Ozarindta* so. or P*ndortn*iUn* sp. CAUS.S-6 85 87AB452 6S*S6*08V Conodons: Early Devonian (middle A.G. Hams. 1988 (11876-SD) 147-07M5- (D-1) PandMOdUs sp., , Emsian) PeMyvgnarhui sp., PofygiwiniM d. P. peroonu*. radepostted Satootwsp. (Middle-Late Ordovician) CAI. 5-5.5 66 87ABd48 6S'55'42-/ Conodons: Early Devonian A.G. Hams, 1988 (11909-SD) 147*08*29- (D-1) so, Paratarodu* sp^ /Vto^ajnatfm sp. CAI.S-S.5 *67 87ABdS4 65*S4*54V ConodonB: Early Devonian (Emsian) A.G. Hams, 1988 (11910-SD) 147*00'3S* (D-1) PtndtfodiM sp^ PandbrirMMfta »(&" . Po^ynatfiua sp. CAI-6.5 Two-note crlnoid ossicles 66 86ABd33 65*SS f23V Conodons: Early Devonian (Emslan- A.G. Hams, 1988 (11438-SD) 147*11*05- (D-1) Betodetl* sp.. PindortmtHn* Glvetian, probably Emsian) sp^ PanoenMUt sp^ Pttetyggnutous sp. CAJ-5.S 69 87ABd62 eS'53'23'/ Crtnoid ossides including Early or Middle Devonian R.B. Blodgen. 1987 147*1 4*10* (D-1) two-hole ossicles of (Emsian or ElfeUan) Gasterocoffur? bfcautf *87ABd62 Conodons: Early Devonian (Emsian) A.G. Hams. 1988 (11913-SD) PandenrdUssp., PtnOorintilnm avvua art. P. 0. p/ttft PeWcysgntttHa sp. CAUS.5-6 *70 87APM37A 65*48*1 7V Conodons: Early Devonian (Emsian) A.G. Harris. 1988 (1191 6-SD) 147*48'OS* (D-1) SMooWtosp.. O2w*ad*ur? sp.. PandenrdUssp.. P»ntohn»tHnm enaua aft P. a, CAI.5-5.5 *71 87ABd61 65*53*33"/ CrinoW ossides (including Early or Middle Devonian R.B. Blodgen. 1987 (11912-SD) 147*1 6*09' (D-1) two-note ossfdes of (Emsian or ElfeUan) Gastenxoma? bteau/V) Donodom: Early or Middle Devonian A.G. Harris. 1988 RandwoduB sp.. (Emsian or Elfellan) Pafak]f»gnar/N» sp. CAI.5.S 72 87ABd60 65*53*34V ^flnoid ossicles Early or Middle Devonian R.B. Blodgen. 1987 11911-SD) 147*1 6*1 8' (D-1) (Emsian or EifeHan) Rugose corals Early or Middle Devonian A.G. Hams . 1988 Conodons: (Emsian or early ElfeUan) OzartoaMrMisp. or PanoDr*M/«na sp.. Po/wnatfM» sp. CAJ-5.5 *73 87ABd72 65*S2'57V Conodons: Early or Middle Devonian A.G. Hams and R.C. 11914-SD) 147*18*31* (D-1) Oatodef dew** Emsian or early Eifallan) Omdorff. 1988 PandbrineMrM sp. CAI.5.5-6 Two-note crinoid ossfdes 74 86AD0138 6S*S2'55-/ xynoonc: Middle Devonian. probaMy A.G. Harm and K.E. 11443-SD) 147*1 8f27- (D-1) PandtofDtfuvsp^ Pofygnatttue Eifallan Denklar. 1988 (pp. of EHeiian morphotype CAJ^.5 *75 88ABd35 6S*S5'35*/ XnXjQnB.%«MMW^M^». Middle Devonian, probably A.G. Harris and ICE 11439-SD) 47*10*48' (D-1) flatodeWa sp.. fcnbdu* sp. of Elfellan Denkler, 1988 Mkkfle to Late Devonian noiphotype. Pandkw^ne/ffna sp, PafyyntttMM HnguHomiB. P. spp. of late ElfeUan-Glvetlan aspect CAUS-S.S 76 87ABd74 ^onodons: Middle Devonian (early A.G. Harris and R.C. 11915-SD) Eifallan) Omdorff 1 988 sp. of Middle Devonian ntorpnotype, Panderodus' sp., ^A^M^MM^MMllfaB^vnoDmeNna an.aH f.A axpansa,^^MB^H^A ^o^0na(/iui aft. P. coatafus costafus. Pofygnatfiui sp. CAU6-5.5 Taacaden Ridgs unt 77 S3ABO(7) 65*29*06V >etacypodaT tritooite Middle Devonian AX Bowsher, 1963 (Mkkfla Devonian: DC) 48*21 S4" (B-3) pvaidlum STRATKaRAPHC UNR MAP FIELD NO. LATITUDE NJ FO6SLS AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* (USGSCOLLN.) LONGmJDEW. (QUADRANGLE) Cascaden Ridge unt 77 eoATbes 86»29'08-/ PelscypodK MMdto Davon«n(?) A.L McAlaatar. 1980 (Middle Davonian: DC) (140873) 148*21 '44' (B-3) Actlnoptfrtm taoert crinokt stam Plata 68ACn971 TantacutttWs: Oavortan Claira Carter. 1969 Ofcrfcomar n. so. 78ACh? PrtKypodi: Lata(?) Davonian J. Pojeta . Jr.. and J.T. AeHnootahg el. A. tabert Dutro. Jr.. 1978 7 ? 67AF117 (8059- 65'29'32V PrtKypodi: Oavonian(?) J. Po)eta, Jr.. and E.L SD) 148«27'40* (B-3) Actinoptthu spp.. Yocnelson, 1967 IGontoohorm. AlurcMsonte so. 82WG1. Alaska Palacypodt; MMdla Devonian (lata R.B. Blodgen. 1982 QQftS Acttoopur* d. A (ateft Bfailan to aariy Glvatlan) Crlnoid ossldas * 82WG2. Alaska Modus ks: MUdto Davonian (lata R.B. Blodgen. 1982 QQftS BfUfmphon so.. Uurchtsonim Eifallan to aarly Glvatlan) p.. tragmantaiy blvalvaa Indat. 82WG3. Alaska MUdto Davonian (lata R.B. Blodgen, 1982 QQftS Bailarophoniaoaan, Bfailan to aarly Glvatlan) Iraamantarv Mvalvaa Indat. 7S 82WG4, Alaska. 9s»W3Smt Bfscntapods: Middla Davoman(lata R.B. Blodgen. 1982 QQftS 148»27'20' (B-3) Vuituypm sp.. Btattan to aarty Glvatlan OandroU tabUato corals . low-splrad gastropods Paiscjipadi; AOtoopMm cL A ttbart MurcnJsonte sp.. Indat. Wra/tw* *80 82AWr30 65*29'18V Corals: Davonian (Glvatlan?) W.A. diver. Jr.. 1984 (10947-SD) 148»28'02' (B-3) Temnophytluml sp. *(3877S) Brachtopods: Middla Davonian (aarly Blodgen (1992); A.FL ScMzooAoriasp. BWIan). Twalvaoitha Ormision and J.W. Durham fSartropods: dtad gastropod spacMs are in Blodgett (1992) Actolnrt sp.. conspactflc or vary dosa to >Va*Ao2yvapteuni spadas in towar Eltollan cnssicostata, Brttoropnoo bads of the Chaanaatnuk (0.)cftapmanV. a (0.) Limestone and Whirlwind fwnooodans*. Bamosaria sp^ Creek Formation of west- Hucanopais tutivmnl, central Alaska BufchaUt nodtasa, TaslafanW? sp^ CM/WDnarna doupy?4 furyzona n. sp., 'Garriasma* ptumttyi, Gymnunm omtitoni, Hypomphmlodrw* cL H /vposus, Loxonama sp. 1. L sp. 2, LoxonamaT cL L dnoUMum, Umttgotpirm waoaraa, MuneMaante (M.) sp.. Noticopg* (N.) bowflMii, N. (Jadria) dtodtart. M (N.) so, Pataaozygqpiaura sp.. °*rwftspiru ehurtdni, PsfudomptutolnxfMM tnstoyi. PtyehomphmUnu sp.. /totitpira sp.. Sraoooo««a7 faoc/a) so., StrapmroUu* EwompnaAw) ounotzan/, S. Sa/po/oapfra) sp.. Strohout atf.5. pufc/Mftsv Suouttav Fu«tep//a)sp. Jfthoconta nautHoUs icaphopooB: lagiogtyjit* sp.. PrDdanta//un sp. 'antaculltlds: JtchcomM sp. Trltobitas: OachsnaMasp. .:cnmooanns.^>| -KJuJ^^HBK. « »no«doc«an» n. sp... ^atoODcMum sp. Soltary rugosa and dondrod tabUata conls 84AWr98A VOnOQQnBt. jWMW^M^M* Middla Davonian (early A.G. Mama, 1984 11016-SD) PofygnattHM cotutiM cotutut, Eilallan) P. HnguUorm* Ungultomm, P.sp. CAUS 84AWr98B lonodonsK Middla Davonian (early A.G. Hams. 1984 11017-SO) Hiypnatfiua pswswaMtf Eilailan) CAW 1 6ABd61-53 6»29'20'/ javoraan^MMM^^Mt FLR Btodgan. 1990 48*2r49' (B-3) ;K<»«~»,* 2 1AMHS2 6»30'37V iryozoansi Mlssisslpptan G.H. Glrty, pra-1937 48*32?8' (C-4) muUpon sp. Corals: Cyaf/Mp/iytfum? so. STRAHGRAPHC UNtt MAP FELDNO. LATITUDE NJ FOSSLS AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* - (USGSCOLLN.) LONGITUDE W. (QUADRANGLE) Cascadan Ridge unit 82 70ACh310f 65-30 f37V Peimatozoan debris (crinoid 7 ^ W.A. Oliver. Jr.. 1971 (Middle Devonian; DC) 148*32'28* (C-4) stem plates) 70ACh311f Corals: SUunan to Late Devonian W.A. Oliver. Jr.. 1971 (8718-SD) favoace* sp., thamnoporoids, ruoosans 70ACh312t Palmatozoan debris (crinoid ? W.A. Oliver, Jr.. 1971 stam dates) *70ACh313f Corals: Middle Devonian W.A. Oliver. Jr., 1971 (8717-SD) Cladopora sp.. HmHo/ttw sp.. Strtngophyllum (Soctophyllum) sp.. TTtamnoponisp.. ' 73E4S7. 73E494 Corals: Probably Devonian C.W. Merriam. 1974 Alaska O.G.OS. AdnophyHum sp.. Indatannlnata coral debris *82AWr3 Corals: Middle Devonian W.A. Oliver. Jr.. 1984 (10431-SD) Grypaphytum sp. d. G. aovfonfum. Sodopnv/Jki/n sp. 83ARb2 (10949- Corals: Early or Middle Devonian W.A. Oliver. Jr.. 1984 SD) Xnvo/ftew sp.. Autocy»(nr? sp^ PucttyftwMif* sp.. Tnamnoporasp.. rugoisans- Massiva bryozoana 83 73E114R Alaska 65-30'23*/ Crinoid cofcjmnaJs middle or late Paleozoic C.W. Merrtam. 1974 148-31 '15- (C-4) 84 16AM!64a ~65*30'56'/ Bracntopods: Middle Devonian Edwin Kirk, pre-1937 -148-3V35- A(ryp« nttcutvtf, CarmvoKMehMisp. (C-4) Corals: CYtthophyHum eaospjtaeum 82AGa10 Alaska Gastrapcda: Middle Oevonian(?) FIR Blodgett. 1982 DUOS. MunsMsonte sp.. SlnpaioUuf? sp. Bivalves Met. Laroe crinoid ossicles 84AWr198G Indeterminate pwecypod Devonian FIR Blodgett. 1984 coqulna *85 79ACnl81 6S'31'04V Plants: Devonian (latest Early or SJi Mamay, 1980 148-31 '52' (C-4) Dawtonitae so.. Hoettnttta sp. early Middle) 83AWr3, 83RB5 SonodonB: Silurian to early Late A.G. Harris. 1983 (10950-SD) Bar fragment ot Ordovidan- Devonian rriassic morpnotype Slurian through Frasnian morphotype, tchthyollths Pooriy preserved bryozoana Paleozoic O.L Karkllns, 1983 Ostracodes Middle Devonian (Eiletlan) W.K. Braun. 1983 *Corals: Middle Devonian (probably W.A. Oliver. Jr.. 1984 CluOoporm sp.. Gypophyllum Glvatlan) sp. d. a fquionium. Thtmnopon sp. Massive stromatoporoids 86. 60AT085E. 94A eS'27'14'/ iracniopods: Devonian(?) J.T. Dutro. Jr.. and J. pit 148*42'04* (B-4) LlngutoM, Indet. fragments Pojeia, Jr.. 1968 10 62AWr187, 191. Petecypods: Middle Devonian J.T. Dutro, Jr.. J. Pojeia. 194 Actinopterim sp.. ?schizodont. Jr.. and E.L Yochetoon. 1988 possibly KnigMltas Rotlsofra) ) 68ACnl001 TentaculltWs: Devonian Claire Carter, 1969 Ntowafcto?8D. 87. 60ATb83A-C, 65'26'SO*/ Jrachtopoda: Middlet?) Devonian J.T. Dutro. Jr., and J. pit 9 83F. G 148-46'09B (B-4) Cruhthyritl sp.. Pojeia. Jr.. 1968; Lstortiynchu* d. L carya. J.T. Dutro. Jr.. 1987 rhyncnonellolds Pelecypod fragments. ecNnoderrn fragments. columnals 62AWr182. 183 Brachtopoda: MtddleMSpn thamnoooroid* Gastropod cteintom, ?cyprtcardlnUd and Itej^kl^a^rftf^lMrvcnBDuoni peMcypm.n mtm n in nrta IMMVAMnje Qcninodenn fraoinenta *68ACn1621 Corate: Middle Devonian W.A. Oliver. Jr.. 1973 and (9173-SO) AhfoHttf to., ChogtophyHum 1984 p.. Oadbporasp., Fwoaim p.. thamnoporotdi Stromatoporokte: Amohtooinft to. 89. 60ATb80D 65*28'24'/ Possible organic burrow Devonlan(?) J.T. Dutro, Jr. and J. pit 7 146*47'53" (B-4) Poleta. Jr.. 1966 62AWr136. 142. Thamnoponwds and hom Devonian J.T. Dutro, Jr.. J. Pojeta, 14S. 150. 152. corala Jr., and E.L Yochatson, 154. 156 Gastropoda: 1968; Lfeepta? sp., Nattcopttsl J.T. Dutro. Jr.. 1987 sp., baUaropnontacaan, various indat. gastropods Patocypods: Grarrnnysai «p^7Mjcu Poypnatnui spp. of Gtvetlan to Frasnien morphotype CAUS *107 87ABd24A 65'24'OOV Conodaras: early Late Devonian A.G. Harris. 1988 (11873-SD) 149*SO'36* (B-6) fcrfedka so. of Middle to Late (Frasnian) Devonian rnorphotype, PofygrmthiM sp. CAI«5 Crinoid omides Devonian R.B. Blodgett. 1987 87ABd24B Conodonau early Late Devonian A.G. Harris. 1988 (11906-SD) SModefMi sp.. PaJfiNMoMpfc sp. (Frasnian) of Frasnian morphotype. PatygntthtM spp. of Qlvetlan to Frasnian morphotype CAI«5 Abundant crinoW ossicles, ' Devonian R.B. Blodgett, 1987 stromatoporoWs *108 87ABd23 6S*23'S3V ConodonK early Lata Devonian A.G. Harris, 1988 (11874-SD) 149»50t37' (B-6) Zone to P. tnanguan* Zone morphotype. Pttauaotopit spp..Po/wnatnutspp. CAI«5 Recrystalllzed corals Devonian R.B. Blodgetl. 1987 '109 87ABd2S 6S'22M8V ConodoraK early Late Devonian A.G. Harris. 1988 (11875-SD) 149*49'36' (B-6) PatmatatopNi spp. of Frasnian [Frasnian) morphotype, Pa*n«to 11 87ABd9 (11559- S'21'55'/ !onodontK Mttdto or Late Devonian K.E. Denkler, 1987 SD) 49*46'09* (B-6) Po^pnat/x* sp. iponoe spicuies (are tabulate corals 12 SAWr49 S»22'26V Recrystattlzad crinoid ossicles Devonlan(?) F.R Weber. 1985 49*44'40' (B-6) Upper Paleozoic 13 9627 D.G.G.S. S'44'15V Corals: Silurian to Mississlppian WA Oliver, Jr.. and WJ. Devonian? to Permian?; 48«03*27* (C-3) Syringoporm sp. Sando, 1982 PDms) 7ABd8 torals: Silurian to Mississippian R.B. Blodgett, 1987 Svrtngepora sp. colonies 7ABd8b /onodonau Middle to Late Devonian K.E. Denkler. 1987 11S57-SD) PdygnatfNfli sp. of MUdto to Late Devonian morphotype CAUS-S.S 87ABd8c (Onodonatt late Late Devonian (late, but K.E. Denkler. 1987 11SS8-SO) Ozartax*wsp,Pa*rMitMtop* not latest Famenrtan) Po9gnainu>d.P. perptorus, P. sp. Indet cK the R ;AI-S.S STRATIGRAPHIC UNR MAP FELDNO. LATITUDE HJ FO6SLS AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* (USGSCOUN.) LONGITUDE W. (QUADRANGLE) Uppar Patoozow 114 04AP277 (2557 65*41'35'/ Brachtopods: MiJftaslpplan(?) E.M. KIndto and G.HL GIrty, (Oavonian? to Permian? PC) 148»23'00' (C-3) Pratfucfua ci. P. tonyttptnut pra-1937 POms) Bryozoana: /Wiftnedaw? sp.. FistuUpon sp.. Po/ypora? tp.. Corals: Uthostmttorrt sp. EuompahJtto. Eeftinodarm oabrts lata Palaozoic (Early J.T. Dutro, Jr.. 1970 Bryozoana: Parmlan?) yUchfcnadlat? «p^ Polypon tanoporoiOB iL|M««» will oorwB,tfMWM^ praoucioajij rl_rim^»UJ bracttopooB, auomphaUd ciaiuuuuui i ii ii n ftm 04AH213 (2553- Brachtopodt: Mlaaiaaipplan(?) E.M. KIndto and G.H. GIrty. PC) Produawtp. pra-1937 Bryozoana: fanailaai tp.. Rhomtapom tp.. SMnoponiftp. Mdluaka: Uma? sp. Echinodamt daorts, laia Paleozoic (Early J.T. Dutro. Jr., 1970 lanaataMU. rtxxnboporoU, anc Parmlan?) stanoporeU bryozoana. rhlpidomaiild productold fraamants 115 18AOF7 (2594- 85*40'33V Bractuopooa: Mlasissippian G.H. GIrty. pra-1937 PC) 1 48*27'41 * (C-3) Sp/rttorcf. S. arctlcua Bryozoana: BftogtomoMa sp.. Fanacta/Mi sp.. Rhomtxjpon sp., Sranopantsp. Crinoid columnato Brachtopods: ata Palaozoic (Early J.T. Dutro. Jr., 1970 Spirtf»r»U*l so. Parmlan?) Echlnodarm daorts, bryozoan dabrls Sedimentary rocxs (lata 118 87ABd30 85»27t 12V Racryatallizad cnnod Palaozoic R.B. Blodgett, 1987 Paleozoic: Pzs) 149M3-54' (B-8) oasidaa. Indat. bracntopods Pannlan sedimentary 117 07AP318 65*24'28*/ iractrioports: Mlasissippian? E.M. Kindle and G.H. GIrty, rock unit (Permian; Ps) 149*56'3S* (8-6) Camarop/wria? sp.. C/wnafac? pra-1937 so.. DMhyrttl sp.. RhipHom*!* sp^ Echinodarms: Platvcrtnus so. 'Bracnlopods: lata Palaozoic (Early J.T. Dutro. Jr.. 1970 ?/Mnatinaaa sp.. Parmian?) Mi/py/tftora? so.. Splrlf0rin»9ll*7 sp., Sranoacavna? sp^ rhipMomallld Bryozoana: rhomooporotds and stanoporoids Echlnodarms: Ptefycrfnttaa? sp., ediinoderm dabna Homcorala. high- and madlum-aplrad gaatrooods 118 07AP320 85*25'42V Saa 07AP318 aoova. J.B. 149»58'48- (B-8) Mania comWnad P318 and P320 atthough thay ara different localltlaa Echmodarm dabna, ecrtnotd ata Palaozoic (Early J.T. Dutro. Jr.. 1970 spina. fanaatailld. Parmlan?) iHxnbopofOld. and stanoporoU bryozoana. punctata spirHaroW fragmant. 69AWr2328 EeMnodarm oascias, lata Paleozoic (Early J.T. Dutro. Jr.. 1970 raanantarv bryozoans Parmian?) 19 8AOF2 (2575- 85*28'54'/ Irachtopoda: Mlaalsalppian G.H. GIrty. pra-1937 PC) 49*55*0 5* (B-8) SpMtortna? sp, Sptrtfer sp. Bryozoana: SafoatonwAa so.. Ftoutlpor* sp.. /VMbdbmaaon? sp. lOraia: Zaprtrarwa^? sp. irinold cohjnats Echmodarm daona, bryozoan lata Palaozoic (Early J.T. Dutro. Jr.. 1970 aorta, brachtopod fragmant, Parmlan?) ourxaata soirlfarold 21 STRATKjRAPNC UNR FELDNO. LATITUDE NJ FO6SLS fCE. IDENTIFIED BY {AGE AND MAP SYMBOL) NO.* (USGSCOLLK) LONGITUDE W. (QUADRANGLE) Permian sedimentary 120 18AOF5 (2593- 65"26'S8*/ Bryozoana: Mlsaisslppian G.H. Glrty. pra-1937 rock unit (Permian; Pa) PC) 149'55'OS' (B-6) BttoHonfUt sp. uiauiBipunB.O»m*£&*m^^ Sp/Wtor sp. Corals: LophophyMvm sp. CrInoM cohjmnals Ecninodarrn daPns. bryozoan late Paleozoic (Early J.T. Dutro, Jr.. 1970 daoris, brachlopod (raomant, Permian?) horn coral 121 18AOF3 (2592- eS'26'26'/ Bryozoana: Mlssissippian G.H. Glrty. pre-1937 PC) 149*S5'24* (B-8) flafoatonMtfa sp., Fitlutlpon sp^SMnoponsp. , CrtnoW columnaJs Bryozoan debris, chaatltorm late Paleozoic (Early J.T. Dutro. Jr.. 1970 coral Permlan7L 122 18AOF4 (2591- eS'26'02'/ Bryozoana: Mlssissippian G.H. Glrty. pre-1937 PC) 149*56'08* (B-6) Batottam0Ua sp., FtauUpon P- Crinold cohjmnals EcMnodarm oeorts. late Paleozoic (Early J.T. Dutro. Jr.. 1970 Permian?) bryozoans. chaatltorm coral 123 60ATD380 -8S'23'32V Bryozoan debris Permlan(?) Helen Ouncan. 1960 -i49'S8fi8- (B-6) 124 69AWr21 5. -6S«26'15*/ Ecninoderm ossicles, late Paleozoic (Early J.T. Dutro. Jr., 1970 87AKW73 -149'SSf38! fragmentary bryozoans Permian?) (B-8) 125 18AOF6 (2591. 6S'28'20*/ EUikmOviiii and bryozoan late Paleozoic (Early J.T. Dutro, Jr.. 1970 PC) 149*40'36* (B-6) debris Permian?) 126 73AChS9 -6S«24'S7V :oraminlters: Permian A.K. Armstrong, 1974 (29935-PC) -149'56'41* NbobMniaspp. (B-6) Tflnodoras: Permian (but not aartiest or A.G. Harris. 1988 AteogondbMte sp. of Permian latest) morphotype CMmS Rampart Votcanics 127 87AC410 6S*41'40V Phospnattzad stemkams of middle Oraoviaan to Early J. Pojeta, Jr.. 1988 MlMisslpplan to 148*S5'28* (C-4) 'Oecapl/tr* spp. (pelecypod) Devonian(?) Triassic; I Mrs) 128 04AP26B (2551- -65«S2'50V WM*J»bM*«M^iraouupuue. Mlsslssippian(?) EM. Kindle and G.H Glrty, PC) -147'53'SO* Muatvdtocf. H. campram, pre-1937 0-2) Sp/Wtor sp. Bryozoana: FtauUporm sp^ Rhomtopon sp.. Sromatopora? sp. icMnodenn debna. ate Paleozoic (Early J.T. Dutro. Jr.. 1970 Permian?) bryozoans. horn corals. MuMdtosp. Rampart Volcanic* 29 82S10S4 6S'44'46V Irachtapods: Permian J.T. Dutro, Jr.. 1983 Mlssissippian to 2910S-PC) 49*49'08* (C-8) PMudotyrinqattiYnrt »P- Triassic; IMrv) 30 82S10S1 8S*41'09V ionodorat: late Middle or Late Triassic B.R. Wardlaw, 1984 M3308S) 49*50'06* (C-6) ^SOOOndbHMHI MMKUtt, CarMognatnuB' sp. 6S'44 > 56-/ 131 87ATM184A Radlolarians: Late Triassic (late Kamian C.D. Blome, 1988 DRS80) 49'20'SO' (C-5) itnoptun nttooftns. or early Norian) schtnU. C. sp^ Latium ptuam, Pecriutsp^ 6S*42'09*/ TriassJc (Tria«sic; Is) 132 88AWr83b MTftlOCtK Permian or Triassic A.G. Harris. 1989 47»01 <30* (C-1) XMbpnaMuvsp. CAU5 133 87AOu3 85'31'32V MnoyonBj.k4MMM^W^». Permian or Triassic A.G. Harris. 1988 47»39'08> (C-2) tapoondbMto sp. CAU6 Phosphaltzad Bjstropnri steinfcoms Wolverine unit (Late 134 2AMI113 65'21'13V cMnodarma: Early Cratacaous T.W. Stanton. pre-1937 Jurassic and (or) Early 11390) 49*51 IS* (B-8) PtfUcrinut sp. Cratacaous; KJw) MoHueha: _ ^__^ iuoBJat cnaseJDBllK, Ptcturt SP. D.L Jones, 1980 tontacntnu* sp. Moousks: lucMar? sp. Mat. Unrn or iWUOO''""i ^«V(OffleWr ttD* 35 7AOo48a 5'27'OOV CoquMa. bivalve shells Jtte Jurassic or Early J. Dover. 1987 49*42*28' (B-8) Cretaceous 22 STRATIGRAPHY UNR MAP FELONO. LATITUDE HJ Fosats AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.* (USGSCOLLN.) LONGITUDE W. (QUADRANGLE) Wolverine unit (Lata 136 87AHm42 65»26'45-/ Coquina. bivaiva shells La)a%Kirasslc or Early Collectors Identification. Jurassic and (or) Early 149-47f1 V (B-8) Cratacaous 1987 Cratacaous; KJwj 137 60ATb359 8S-22-39'/ Blvatva molds Lata Jurassic or Early Collectors Identification. 149-55'49- (B-«) Cratacaous 1960 138 60AT5353 eS-22'25"/ Bivaiva molds Lata Jurassic or Early Collectors Identification. 149-53'42- (B-8) Cretaceous 1960 139 87AKW41 eS-21'22-/ Fossri hash, bivaiva molds Lata Jurassic or Early Collectors Identification. 149*51 '43- (B-8) Cretaceous 1987 140 22AM18S ~65-22f16-/ Petocypods: Early Cratacaous T.W. Stsnton. pre-1937 ~149-53'40- Aucttfl so., petecypods Indet. (B-8) 141 11 AH 5 Quail-Little Mlnook Moilusks: Early Cretaceous T.W. Stsnton. pre-1937 Creak divide (B4) so. WUbar Creak unit (Earty 142 15B312 (1521 A) eS-43'43-/ Pyrttized wood? 7 Collectors Identification. Cratacaous. AJbian; Kwc) 147-24*10- (C-1) 1915 143 76ABdLl 65-1 9'40-/ Palacypads: Jurassic or Cratacaous R.B. Blodoatt. 1978 148-1 8-28' (B-31 /nooanmruK? so. 144 Univ. Alaska, pre- 65 >28'32>/ r^eMcypooa.^^^bMU»««W^* Jurassic or Cratacaous D.L Jones. 1960 1980 148-16M8- (B-3) /nocamffluv? so. 145 59AHp8B (A-60- eS-03'43"/ PaJacypods? Jurassic or Cratacaous D.L Jones. 1960 2M1 149-59-20- (A-6) /nooaramuv? so. *148 22AMt105A ~85-20'48V Gastroplltad ammonite Early Cratacaous (early or D.L. Jones. 1971 (11392) ~149-49'40- middle AlWan) (B-8) 147 59Ahp761 eS-20'35-/ Moilusks: Early Crataceous(?) D.L Jones, 1960 147-46'33- (B-8) Inocanmus n. sp.7. (Alblan?) aastroolited ammonite *148 89AWM2 65-20-1 2V Ammonoitas: Early Cratacaous (middle J.W. Miller, 1989 149-45-38' (B-8) Paraoastrooiitee Ooxicoftatus Alblan) 149 Martin. 1914 65-20-43 1-/ Ecntnoderms: Lata Cretaceous T.W. Stanton. pre-1937 (9800) 149-46-06' (B-8) Hemifstort sp. Moilusks: CucuMaaa so.. Nattca sp., Atomodbn so.. Afcicuui so.. Pacttvdlscugl so.. Pocton so. Moilusks: Early Cratacaous (AJbian) D.L Jones. 1960 GastropiitU ammonita. Gaudrycara* so., dams, snails Mnto unit (Lata 150 67AKW54 65-18-28V Unidentified planl fragments Lata Cretaceous(?) K.W. Wheeler, 1967 Cratacaous?; Km) 149-53'59- (B-6) 151 87AKW53 65-18-08V Unidentified plant fragments Late Cretaceous K.W. Wheeler, 1987 149'54'SS* (B-6) (Km?) 152 S9AHP763 65-20-30V Moilusks: Oetacaous D.L Jones. 1960 149-47MO- (B-6) Cucutfaeaso. (Km) *153 7AP271 65*20'32-/ Echtnoderms: Lata Cretaceous T.W. Stanton. pre-1937 149-48'D 9" (B-6) Hwiriasfer? sp. Moilusks: Cucutfaea *p.. Ino&nurtug d. /. iabovus. Ludna sp.. PacnydtecuB sp.. Pacfiydiscusl so.. Poctln so.. Plouromyt so. Plants: Late Cretaceous F.H. Knowlton. pre-1937 Gintsosp., T«xodium*p., dicotyledonous plant ragmants Tertiary (Eocene; TVS) 154 70ACh210f eS'47'24'/ Plants: Tertiary J.A. Wolfe. 1977 11293) 149-25'00- (D-5) Matasaouoilasa 55 70ACh205( eS'47'37*/ Plants: 'aJaogana J.A. Wolfe. 1977 11292) 149-27'00- (D-5) Alatateouoia ocdoanraat, d. Pfanara microphyi*, Ptefanus* sp. 156 Spurr, 1896 85-40'OSV Plants: Eocene Arthur Hollicfc. pre- Collier, 1902 149-49f22' (C-6) fiqutaaram arcticum. Poputut 1936: T.A. Ager. 1989 Hoillck. 1903 Draw mine fcnardcon/, H/cona Bannstt, 1906 vkdntty as reported mmonittcm, Sophon by Hollicfc, 1936) multttormis, Ctttiu gtonnt, Pihtcoiobtum oararum, PmMHni* aiaafcana. Ceiastru* comparaoi/te, Jugtms acuminata ImUtoUt, Crataegu* /utonertM, Gm*» orttcutafa. FIcuv? alaskana 23 STRATIGRAPHY UNt MAP FEU) NO. LATITUDE HJ FOSSLS AGE IDENTIFIED BY (AGE AND MAP SYMBOL) NO.' (USGSCOLLN.) LONGfTUDEW. (QUADRANGLE) Tertiary (Eocene; TVS) 157 69ACh130 85'40'OSV Pollen: Eorane or OVgooane E.B. Leopold. 1974 (04744A) 149' 49-22' (C-6) TBto d. r. hanytum, Draw mine Trtcotporopottotitf* Cactanopcar type. Umu» p4, Jugltnt, TaxMIacaaa. raxooVkimtypa, ct Acer, Ptnut, Jugtandaceae. Can/*? and Prerocan/a, Ouercu*. d. Cyam, KeaaMeTM or At** Trtumtoam type d the TUIaceee?. Tricolpataa and trtporataa Indet. fungal sporaa, d Polypodlaoaaa, large trtlete torn toons Tertiary and Quaternary *158 87ASH1 85'3V54-/ Rants: late Miocene or Pliocene T.A. Ager. 1987 (Pliocene? to Holocene; 148«32'40- (C-4) yUnufsp.. Satutoso^ QTg) Cyparacaaa, Gramlnaae. fffaaa p.. Ptnut sp^ Po*emon**n sp^ rmgasp.. sphagnum moss spores and several types d fern sooraa Quaternary (Hotocene; 158 Paw* 85'05'35V Mammals: Pleistocene ?. pre-1975 Qsu) 147'43'SO' fA-2) Cttfiut undutatus, coorolites Quaternary (Hotocene; 160 Pawe 85'03'40'/ Mammals: ?. pre-1975 09) 147*00'10* (A-1) fiteon craactaornte, Atarrnnurnua primtguntut, CMbosvo. 24-