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Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas
Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas GEOLOGICAL SURVEY PROFESSIONAL PAPER 1253 Stratigraphy and Paleontology of Mid-Cretaceous Rocks in Minnesota and Contiguous Areas By WILLIAM A. COBBAN and E. A. MEREWETHER Molluscan Fossil Record from the Northeastern Part of the Upper Cretaceous Seaway, Western Interior By WILLIAM A. COBBAN Lower Upper Cretaceous Strata in Minnesota and Adjacent Areas-Time-Stratigraphic Correlations. and Structural Attitudes By E. A. M EREWETHER GEOLOGICAL SURVEY PROFESSIONAL PAPER 1 2 53 UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1983 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress Cataloging in Publication Data Cobban, William Aubrey, 1916 Stratigraphy and paleontology of mid-Cretaceous rocks in Minnesota and contiguous areas. (Geological Survey Professional Paper 1253) Bibliography: 52 p. Supt. of Docs. no.: I 19.16 A. Molluscan fossil record from the northeastern part of the Upper Cretaceous seaway, Western Interior by William A. Cobban. B. Lower Upper Cretaceous strata in Minnesota and adjacent areas-time-stratigraphic correlations and structural attitudes by E. A. Merewether. I. Mollusks, Fossil-Middle West. 2. Geology, Stratigraphic-Cretaceous. 3. Geology-Middle West. 4. Paleontology-Cretaceous. 5. Paleontology-Middle West. I. Merewether, E. A. (Edward Allen), 1930. II. Title. III. Series. QE687.C6 551.7'7'09776 81--607803 AACR2 For sale by the Distribution Branch, U.S. -
Tectonic Setting of the Lower Fernie Formation
Tectonic setting of the lower Fernie Formation: insights from subsidence analysis Tannis McCartney*, Department of Geoscience, University of Calgary, Calgary, Alberta, Canada [email protected] and Andrew Leier, Department of Geoscience, University of Calgary, Calgary, Alberta, Canada Introduction In this study, the Fernie Formation in west-central Alberta is informally divided into upper and lower Fernie. The lower Fernie contains the Nordegg, Gordondale, Red Deer, Poker Chip and Rock Creek Members. These are separated from the Upper Fernie shales by many unconformities, simplified here as a single regional unconformity (Figure 1). Figure 1: Simplified stratigraphic column of the Fernie Formation. In this study, the Fernie Formation is divided into the Upper Fernie (shales) and the lower Fernie (Rock Creek, Poker Chip Shale, and Nordegg). The unconformities separating the Upper Fernie from the lower Fernie are here represented as a single, regional unconformity. The Nordegg and Gordondale Members of the Fernie Formation were deposited during the early stages of tectonic loading in the Cordillera to the west. These members, along with the Poker Chip and Rock Creek Members, were studied to look for evidence of this tectonic activity in the sedimentary record. The results give new insights into current understandings of the lower Fernie Formation. Theory and Method Tectonic subsidence measures the tectonically controlled vertical movement of a basin. Calculating the amount of tectonic subsidence the basin has undergone involves accounting for sediment compaction, paleobathymetry, sea-level changes and post-depositional sediment compaction. GeoConvention 2012: Vision 1 In basin analysis, tectonic subsidence plotted on a depth vs. age chart is used to classify the type of basin the sediments were deposited in. -
First Record of Non-Mineralized Cephalopod Jaws and Arm Hooks
Klug et al. Swiss J Palaeontol (2020) 139:9 https://doi.org/10.1186/s13358-020-00210-y Swiss Journal of Palaeontology RESEARCH ARTICLE Open Access First record of non-mineralized cephalopod jaws and arm hooks from the latest Cretaceous of Eurytania, Greece Christian Klug1* , Donald Davesne2,3, Dirk Fuchs4 and Thodoris Argyriou5 Abstract Due to the lower fossilization potential of chitin, non-mineralized cephalopod jaws and arm hooks are much more rarely preserved as fossils than the calcitic lower jaws of ammonites or the calcitized jaw apparatuses of nautilids. Here, we report such non-mineralized fossil jaws and arm hooks from pelagic marly limestones of continental Greece. Two of the specimens lie on the same slab and are assigned to the Ammonitina; they represent upper jaws of the aptychus type, which is corroborated by fnds of aptychi. Additionally, one intermediate type and one anaptychus type are documented here. The morphology of all ammonite jaws suggest a desmoceratoid afnity. The other jaws are identifed as coleoid jaws. They share the overall U-shape and proportions of the outer and inner lamellae with Jurassic lower jaws of Trachyteuthis (Teudopseina). We also document the frst belemnoid arm hooks from the Tethyan Maastrichtian. The fossils described here document the presence of a typical Mesozoic cephalopod assemblage until the end of the Cretaceous in the eastern Tethys. Keywords: Cephalopoda, Ammonoidea, Desmoceratoidea, Coleoidea, Maastrichtian, Taphonomy Introduction as jaws, arm hooks, and radulae are occasionally found Fossil cephalopods are mainly known from preserved (Matern 1931; Mapes 1987; Fuchs 2006a; Landman et al. mineralized parts such as aragonitic phragmocones 2010; Kruta et al. -
The Pro-Ostracum and Primordial Rostrum at Early Ontogeny of Lower Jurassic Belemnites from North-Western Germany
Coleoid cephalopods through time (Warnke K., Keupp H., Boletzky S. v., eds) Berliner Paläobiol. Abh. 03 079-089 Berlin 2003 THE PRO-OSTRACUM AND PRIMORDIAL ROSTRUM AT EARLY ONTOGENY OF LOWER JURASSIC BELEMNITES FROM NORTH-WESTERN GERMANY L. A. Doguzhaeva1, H. Mutvei2 & W. Weitschat3 1Palaeontological Institute of the Russian Academy of Sciences 117867 Moscow, Profsoyuznaya St., 123, Russia, [email protected] 2 Swedish Museum of Natural History, Department of Palaeozoology, S-10405 Stockholm, Sweden, [email protected] 3 Geological-Palaeontological Institute and Museum University of Hamburg, Bundesstrasse 55, D-20146 Hamburg, Germany, [email protected] ABSTRACT The structure of pro-ostracum and primordial rostrum is presented at early ontogenic stages in Lower Jurassic belemnites temporarily assigned to ?Passaloteuthis from north-western Germany. For the first time the pro-ostracum was observed in the first camerae of the phragmocone. The presence of a pro-ostracum in early shell ontogeny supports Naef”s opinion (1922) that belemnites had an internal skeleton during their entire ontogeny, starting from the earliest post-hatching stages. This interpretation has been previously questioned by several writers. The outer and inner surfaces of the juvenile pro-ostracum were studied. The gross morphology of these surfaces is similar to that at adult ontogenetic stages. Median sections reveal that the pro-ostracum consists of three thin layers: an inner and an outer prismatic layer separated by a fine lamellar, predominantly organic layer. These layers extend from the dorsal side of the conotheca to the ventral side. The information obtained herein confirms the idea that the pro-ostracum represents a structure not present in the shell of ectocochleate cephalopods (Doguzhaeva, 1999, Doguzhaeva et al. -
Petrographic Characterizations of the “Nordegg” (Gordondale) Member of the Fernie Formation in West Central Alberta, Using S
Petrographic characterizations of the “Nordegg” (Gordondale) Member of the Fernie Formation in West Central Alberta, Using Scanning Electron Microscopy & Organic Petrology Nnenna Isinguzo, University of Calgary, [email protected] Hamed Sanei, Geological Survey of Canada, Calgary; Center for Energy Technologies, AU-Herning, Aarhus University, Denmark; Department of Geoscience, University of Calgary Christopher Clarkson, University of Calgary Chris DeBuhr, University of Calgary Omid Haeri Ardakani, Geological Survey of Canada, Calgary Danielle Kondla, University of Calgary Fariboz Goodarzi, FG & Partners LTD, Calgary, Alberta Summary The Gordondale member of the Fernie Formation, also termed “Nordegg”, in West Central Alberta has recently come to light as the focus of many unconventional exploration activities due to its high hydrocarbon potential and the improvement in drilling, completion and stimulation techniques that have allowed reserves of its qualities – tight (low permeability and porosity) organic rich shales, to be exploited. This study highlights the organic matter characteristics and associations of the Gordondale, as well as its implications for the hydrocarbon potential and reservoir quality using scanning electron microscope (SEM) and organic petrography. Preliminary results show that the samples are generally organic rich (up to 13 wt. % TOC) and within the oil generation window (eq. VRo=0.9%). The organic petrology indicates the presence of bitumen as the dominant organic maceral within the samples. Bitumen in the samples exhibit an invasive nature as they dominate the entire matrix of the samples and fill most intergranular pore spaces within organic and inorganic fractions of the rock. Bitumen also occurs in the form of vacuole and fracture filling migrated bitumen. In general, two main types of bitumen (matrix bitumen and solid bitumen) can be summarized based on their mode of occurrence, maturity and physical accumulation. -
Late Jurassic Ammonites from Alaska
Late Jurassic Ammonites From Alaska GEOLOGICAL SURVEY PROFESSIONAL PAPER 1190 Late Jurassic Ammonites From Alaska By RALPH W. IMLAY GEOLOGICAL SURVEY PROFESSIONAL PAPER 1190 Studies of the Late jurassic ammonites of Alaska enables fairly close age determinations and correlations to be made with Upper Jurassic ammonite and stratigraphic sequences elsewhere in the world UNITED STATES GOVERNMENT PRINTING OFFICE, WASHINGTON 1981 UNITED STATES DEPARTMENT OF THE INTERIOR JAMES G. WATT, Secretary GEOLOGICAL SURVEY Dallas L. Peck, Director Library of Congress catalog-card No. 81-600164 For sale by the Distribution Branch, U.S. Geological Survey, 604 South Pickett Street, Alexandria, VA 22304 CONTENTS Page Page Abstract ----------------------------------------- 1 Ages and correlations ----------------------------- 19 19 Introduction -------------------------------------- 2 Early to early middle Oxfordian -------------- Biologic analysis _________________________________ _ 14 Late middle Oxfordian to early late Kimmeridgian 20 Latest Kimmeridgian and early Tithonian _____ _ 21 Biostratigraphic summary ------------------------- 14 Late Tithonian ______________________________ _ 21 ~ortheastern Alaska ------------------------- 14 Ammonite faunal setting -------------------------- 22 Wrangell Mountains -------------------------- 15 Geographic distribution ---------------------------- 23 Talkeetna Mountains ------------------------- 17 Systematic descriptions ___________________________ _ 28 Tuxedni Bay-Iniskin Bay area ----------------- 17 References -
Fossil Lagerstätte from Ya Ha Tinda, Alberta, Canada
A new Early Jurassic (ca. 183 Ma) fossil Lagerstätte from Ya Ha Tinda, Alberta, Canada Rowan C. Martindale1,2*, Theodore R. Them II3,4, Benjamin C. Gill3, Selva M. Marroquín1,3, and Andrew H. Knoll2 1Department of Geological Sciences, The University of Texas at Austin, 1 University Station C1100, Austin, Texas 78712, USA 2Department of Organismic and Evolutionary Biology, Harvard University, 26 Oxford Street, Cambridge, Massachusetts 02138, USA 3Department of Geosciences, Virginia Polytechnic Institute and State University, 4044 Derring Hall (0420), Blacksburg, Virginia 24061, USA 4Department of Earth, Ocean and Atmospheric Science & National High Magnetic Field Laboratory, Florida State University, Tallahassee, Florida 32306, USA ABSTRACT Figure 1. Global paleoge- Lagerstätten—deposits of exceptionally preserved fossils—offer ography during Toarcian vital insights into evolutionary history. To date, only three Konservat- and location of Ya Ha Tinda Hispanic (Alberta, Canada; yellow Lagerstätten are known from Early Jurassic marine rocks (Osteno, Corridor Tethys star), Strawberry Bank (UK; Posidonia Shale, and Strawberry Bank), all located in Europe. We gray star), and Posidonia report a new assemblage of exceptionally preserved fossils from Panthalassa Shale (Germany; black star) Alberta, Canada, the first marine Konservat-Lagerstätte described Lagerstätten. Green areas are Pangea landmasses, light-blue areas from the Jurassic of North America. The Ya Ha Tinda assemblage are shallow seas, and dark includes articulated vertebrates (fish, -
Structural Geology of the Southern Livingstone Range
Meteoric fluid isotopic signatures of thrust-fault-related veins in the Livingstone Range anticlinorium and their significance for syn-deformational regional fluid migration Michael A. Cooley*, Raymond A. Price, John M. Dixon, and T. Kurtis Kyser Department of Geological Sciences and Geological Engineering Queen’s University, Kingston, Kingston, ON, K7L 3N6 [email protected] ABSTRACT δ13C and δ18O isotope values of calcite in veins and host rocks from thrust fault zones indicate that fluids with meteoric isotopic signatures were present along thrust faults and infiltrating the tip-lines of minor thrusts during the formation of fault-propagation folds in the Livingstone Range Anticlinorium of southwest Alberta. Isotope geochemistry of cross-fault veins indicates that formation fluids predominated within the transverse structures, implying that cross faults were not conduits for local downward infiltration of meteoric water. Meteoric fluids must have been flowing eastward along the major thrust faults from a recharge area in the topographically higher hinterland to the west during formation of the thrust and fold belt. The incursion of meteoric waters coincided with hydrocarbon migration as indicated by hydrocarbon residues within thrust- fault-related calcite veins. Introduction The Livingstone Range of the southern Alberta foothills comprises the easternmost surface exposures of Carboniferous rocks in the southern Canadian Cordillera (Fig. 1). The Livingstone Range is an anticlinorium that developed where the Livingstone thrust cuts up-section in its hanging wall from a regional detachment in the upper Palliser Formation, through the overlying Mississippian Rundle Group and younger strata to an upper detachment within the Jurassic Fernie Formation. The anticlinorium comprises two to three adjacent fault- propagation fold anticlines which contain thrust faults that die out upwards into the cores of the folds. -
Cretaceous Fossils from the Chesapeake and Delaware Canal
Cretaceous S;cial Publication No. 18 Fossils from the Chesapeake and Delaware Canal A Guide for Students and Collectors Edward M. Lauginiger / /~ / CRETACEOUS FOSSILS FROM THE CHESAPEAKE AND DELAWARE CANAL: A GUIDE FOR STUDENTS AND COLLECTORS By Edward M. Lauginiger Biology Teacher Academy Park High School Sharon Hill, Pennsylvania September 1988 Reprinted 1997 CONTENTS Page INTRODUCTION. • 1 ACKNOWLEDGMENTS 2 PREVIOUS STUDIES. 3 FOSSILS AND FOSSILIZATION 5 Requirements for Fossilization 6 Types of Fossilization 7 GEOLOGY •• 10 CLASSIFICATON OF FOSSILS. 12 Kingdom Monera • 13 Kindgom Protista 1 3 Kingdom Plantae. 1 4 Kingdom Animalia 15 Phylum Porifera 15 Phylum Cnidaria (Coelenterata). 16 Phylum Bryozoa. 16 Phylum Brachiopoda. 17 Phylum Mollusca • 18 Phylum Annelida •. 22 Phylum Arthropoda • 23 Phylum Echinodermata. 24 Phylum Chordata 24 COLLECTING LOCALITIES 28 FOSSIL CHECK LIST 30 BIBLIOGRAPHY. 33 PLATES. ••• 39 iii FIGURES Page Figure 1 • Index map of the Chesapeake and Delaware Canal Area. .. .. 2 Figure 2. Generalized stratigraphic column of the formations exposed at the C & D Canal. 11 Figure 3. Foraminifera 14 Figure 4. Porifera 16 Figure 5. Cnidaria 16 Figure 6. Bryozoa. 17 Figure 7. Brachiopoda. 18 Figure 8. Mollusca-Gastropoda. 19 Figure 9. Mollusca-Pelecypoda. 21 Figure 10. Mollusca-Cephalopoda 22 Figure 11. Annelida . 22 Figure 12. Arthropoda 23 Figure 13. Echinodermata. 25 Figure 1 4. Chordata . 27 Figure 1 5. Collecting localities at the Chesapeake and Delaware Canal . ... .. 29 v CRETACEOUS FOSSILS FROM THE CHESAPEAKE AND DELAWARE CANAL: A GUIDE FOR STUDENTS AND COLLECTORS Edward M. Lauginiger INTRODUCTION Fossil collectors have been attracted to Delaware since the late 1820s when the excavation of the Chesapeake and Delaware (C&D) Canal first exposed marine fossils of Cretaceous age (Fig. -
An Inventory of Belemnites Documented in Six Us National Parks in Alaska
Lucas, S. G., Hunt, A. P. & Lichtig, A. J., 2021, Fossil Record 7. New Mexico Museum of Natural History and Science Bulletin 82. 357 AN INVENTORY OF BELEMNITES DOCUMENTED IN SIX US NATIONAL PARKS IN ALASKA CYNTHIA D. SCHRAER1, DAVID J. SCHRAER2, JUSTIN S. TWEET3, ROBERT B. BLODGETT4, and VINCENT L. SANTUCCI5 15001 Country Club Lane, Anchorage AK 99516; -email: [email protected]; 25001 Country Club Lane, Anchorage AK 99516; -email: [email protected]; 3National Park Service, Geologic Resources Division, 1201 Eye Street, Washington, D.C. 20005; -email: justin_tweet@ nps.gov; 42821 Kingfisher Drive, Anchorage, AK 99502; -email: [email protected];5 National Park Service, Geologic Resources Division, 1849 “C” Street, Washington, D.C. 20240; -email: [email protected] Abstract—Belemnites (order Belemnitida) are an extinct group of coleoid cephalopods, known from the Jurassic and Cretaceous periods. We compiled detailed information on 252 occurrences of belemnites in six National Park Service (NPS) areas in Alaska. This information was based on published literature and maps, unpublished U.S. Geological Survey internal fossil reports (“Examination and Report on Referred Fossils” or E&Rs), the U.S. Geological Survey Mesozoic locality register, the Alaska Paleontological Database, the NPS Paleontology Archives and our own records of belemnites found in museum collections. Few specimens have been identified and many consist of fragments. However, even these suboptimal specimens provide evidence that belemnites are present in given formations and provide direction for future research. Two especially interesting avenues for research concern the time range of belemnites in Alaska. Belemnites are known to have originated in what is now Europe in the Early Jurassic Hettangian and to have a well-documented world-wide distribution in the Early Jurassic Toarcian. -
Cephalopoda) from Egypt: Evolutionary Significance and Origin of the Sepiid ‘Rostrum’
New Paleocene Sepiid Coleoids (Cephalopoda) from Egypt: Evolutionary Significance and Origin of the Sepiid ‘Rostrum’ Martin Košťák1*, John W. M. Jagt2, Robert P. Speijer3, Peter Stassen3, Etienne Steurbaut3,4 1 Institute of Geology and Palaeontology, Faculty of Science, Charles University, Prague, Czech Republic, 2 Natuurhistorisch Museum Maastricht, Maastricht, The Netherlands, 3 Katholieke Universiteit Leuven, Leuven, Belgium, 4 Royal Belgian Institute of Natural Sciences, Brussels, Belgium Abstract New coleoid cephalopods, assignable to the order Sepiida, are recorded from the Selandian/Thanetian boundary interval (Middle to Upper Paleocene transition, c. 59.2 Ma) along the southeastern margin (Toshka Lakes) of the Western Desert in Egypt. The two genera recognised, Aegyptosaepia n. gen. and ?Anomalosaepia Weaver and Ciampaglio, are placed in the families Belosaepiidae and ?Anomalosaepiidae, respectively. They constitute the oldest record to date of sepiids with a ‘rostrum-like’ prong. In addition, a third, generically and specifically indeterminate coleoid is represented by a single rostrum-like find. The taxonomic assignment of the material is based on apical parts (as preserved), i.e., guard, apical prong (or ‘rostrum-like’ structure), phragmocone and (remains of) protoconch, plus shell mineralogy. We here confirm the shell of early sepiids to have been bimineralic, i.e., composed of both calcite and aragonite. Aegyptosaepia lugeri n. gen., n. sp. reveals some similarities to later species of Belosaepia, in particular the possession of a distinct prong. General features of the phragmocone and protoconch of the new form are similar to both Belocurta (Middle Danian [Lower Paleocene]) and Belosaepia (Eocene). However, breviconic coiling and the presence of a longer ventral conotheca indicate closer ties with late Maastrichtian–Middle Danian Ceratisepia. -
A Synoptic Review of the Vertebrate Fauna from the “Green Series
A synoptic review of the vertebrate fauna from the “Green Series” (Toarcian) of northeastern Germany with descriptions of new taxa: A contribution to the knowledge of Early Jurassic vertebrate palaeobiodiversity patterns I n a u g u r a l d i s s e r t a t i o n zur Erlangung des akademischen Grades eines Doktors der Naturwissenschaften (Dr. rer. nat.) der Mathematisch-Naturwissenschaftlichen Fakultät der Ernst-Moritz-Arndt-Universität Greifswald vorgelegt von Sebastian Stumpf geboren am 9. Oktober 1986 in Berlin-Hellersdorf Greifswald, Februar 2017 Dekan: Prof. Dr. Werner Weitschies 1. Gutachter: Prof. Dr. Ingelore Hinz-Schallreuter 2. Gutachter: Prof. Dr. Paul Martin Sander Tag des Promotionskolloquiums: 22. Juni 2017 2 Content 1. Introduction .................................................................................................................................. 4 2. Geological and Stratigraphic Framework .................................................................................... 5 3. Material and Methods ................................................................................................................... 8 4. Results and Conclusions ............................................................................................................... 9 4.1 Dinosaurs .................................................................................................................................. 10 4.2 Marine Reptiles .......................................................................................................................