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Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)
St. Cloud State University theRepository at St. Cloud State Culminating Projects in Cultural Resource Management Department of Anthropology 10-2019 Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska) Samantha Mills Follow this and additional works at: https://repository.stcloudstate.edu/crm_etds Part of the Archaeological Anthropology Commons Recommended Citation Mills, Samantha, "Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska)" (2019). Culminating Projects in Cultural Resource Management. 28. https://repository.stcloudstate.edu/crm_etds/28 This Thesis is brought to you for free and open access by the Department of Anthropology at theRepository at St. Cloud State. It has been accepted for inclusion in Culminating Projects in Cultural Resource Management by an authorized administrator of theRepository at St. Cloud State. For more information, please contact [email protected]. Paleoenvironment of the Late Eocene Chadronian-Age Whitehead Creek Locality (Northwestern Nebraska) by Samantha M. Mills A Thesis Submitted to the Graduate Faculty of St. Cloud State University in Partial Fulfillment of the Requirements for the Degree of Master of Science in Functional Morphology October, 2019 Thesis Committee: Matthew Tornow, Chairperson Mark Muñiz Bill Cook Tafline Arbor 2 Abstract Toward the end of the Middle Eocene (40-37mya), the environment started to decline on a global scale. It was becoming more arid, the tropical forests were disappearing from the northern latitudes, and there was an increase in seasonality. Research of the Chadronian (37- 33.7mya) in the Great Plains region of North America has documented the persistence of several mammalian taxa (e.g. primates) that are extinct in other parts of North America. -
Rodents (Mammalia) from the Pilgrim Creek Local Fauna, Wyoming: a Mixed Eocene and Oligocene Assemblage (Duchesnean to Whitneyan)
Paludicola 11(2):51-72 March 2017 © by the Rochester Institute of Vertebrate Paleontology RODENTS (MAMMALIA) FROM THE PILGRIM CREEK LOCAL FAUNA, WYOMING: A MIXED EOCENE AND OLIGOCENE ASSEMBLAGE (DUCHESNEAN TO WHITNEYAN) William W. Korth Rochester Institute of Vertebrate Paleontology, 265 Carling Road, Rochester, New York 14610 <[email protected]> ABSTRACT Previously, only the non-eomyid rodents from the Pilgrim Creek fauna of Wyoming have been described (Sutton and Black, 1975; Korth, 1981; Korth and Emry, 2013). This fauna has been considered as Chadronian in age since its first description. Twenty-seven species of rodents are recognized here from this fauna. There is a predominance of Chadronian species (13 taxa); however, the presence of three species known elsewhere from the Duchesnean (“Leptotomus” guildayi, Metanoiamys korthi, Griphomys cf. alecer), four from the Orellan (“Prosciurus” sp., cf. relictus, Eumys elegans, “Scottimus” viduus, Protosciurus sp., cf. P. mengi), and two from the Whitneyan (Leptodontomys douglassi, Ansomys sp., cf. A. cyanotephrus,) demonstrates that the fauna is clearly mixed with elements from four different horizons. INTRODUCTION either earlier or later horizons, demonstrating the evident mixing of faunas. Over 40 years ago, Sutton and Black (1975) _________________________________________ identified 11 species of rodents from the Pilgrim Creek fauna of Wyoming (Table 1). However, TABLE 1. Previously identified rodents from the Pilgrim Creek specimens of the family Eomyidae were not local fauna, Wyoming (Sutton and Black, 1975). described or listed. The locality from which the Ischyromyidae fossils were collected is in the Teton National Forest Ischyromys cf. veterior in Jackson County, Wyoming along Pilgrim Creek Cylindrodontidae (Sutton and Black, 1975). -
Fossil Amphibians and Reptiles from the Neogene Locality of Maramena (Greece), the Most Diverse European Herpetofauna at the Miocene/Pliocene Transition Boundary
Palaeontologia Electronica palaeo-electronica.org Fossil amphibians and reptiles from the Neogene locality of Maramena (Greece), the most diverse European herpetofauna at the Miocene/Pliocene transition boundary Georgios L. Georgalis, Andrea Villa, Martin Ivanov, Davit Vasilyan, and Massimo Delfino ABSTRACT We herein describe the fossil amphibians and reptiles from the Neogene (latest Miocene or earliest Pliocene; MN 13/14) locality of Maramena, in northern Greece. The herpetofauna is shown to be extremely diverse, comprising at least 30 different taxa. Amphibians include at least six urodelan (Cryptobranchidae indet., Salamandrina sp., Lissotriton sp. [Lissotriton vulgaris group], Lissotriton sp., Ommatotriton sp., and Sala- mandra sp.), and three anuran taxa (Latonia sp., Hyla sp., and Pelophylax sp.). Rep- tiles are much more speciose, being represented by two turtle (the geoemydid Mauremys aristotelica and a probable indeterminate testudinid), at least nine lizard (Agaminae indet., Lacertidae indet., ?Lacertidae indet., aff. Palaeocordylus sp., ?Scin- cidae indet., Anguis sp., five morphotypes of Ophisaurus, Pseudopus sp., and at least one species of Varanus), and 10 snake taxa (Scolecophidia indet., Periergophis micros gen. et sp. nov., Paraxenophis spanios gen. et sp. nov., Hierophis cf. hungaricus, another distinct “colubrine” morphotype, Natrix aff. rudabanyaensis, and another dis- tinct species of Natrix, Naja sp., cf. Micrurus sp., and a member of the “Oriental Vipers” complex). The autapomorphic features and bizarre vertebral morphology of Perier- gophis micros gen. et sp. nov. and Paraxenophis spanios gen. et sp. nov. render them readily distinguishable among fossil and extant snakes. Cryptobranchids, several of the amphibian genera, scincids, Anguis, Pseudopus, and Micrurus represent totally new fossil occurrences, not only for the Greek area, but for the whole southeastern Europe. -
Petrology of Sandstones from the Bullion Creek and Sentinel Butte Formations (Paleocene), Little Missouri Badlands, North Dakota Mark A
University of North Dakota UND Scholarly Commons Theses and Dissertations Theses, Dissertations, and Senior Projects 1978 Petrology of sandstones from the Bullion Creek and Sentinel Butte Formations (Paleocene), Little Missouri Badlands, North Dakota Mark A. Steiner University of North Dakota Follow this and additional works at: https://commons.und.edu/theses Part of the Geology Commons Recommended Citation Steiner, Mark A., "Petrology of sandstones from the Bullion Creek and Sentinel Butte Formations (Paleocene), Little iM ssouri Badlands, North Dakota" (1978). Theses and Dissertations. 286. https://commons.und.edu/theses/286 This Thesis is brought to you for free and open access by the Theses, Dissertations, and Senior Projects at UND Scholarly Commons. It has been accepted for inclusion in Theses and Dissertations by an authorized administrator of UND Scholarly Commons. For more information, please contact [email protected]. PETROLOGY OF SANDSTONES FROM THE BULLION CREEK AND SENTINEL BUTTE FORNATIONS (PALEOCENE), LITTLE MISSOURI BADLANDS, NORTH DAKOTA by Mark A. Steiner Bachelor of Arts, College of St. Thomas, 1972 A Thesis Submitted to the Graduate Faculty of the University of North Dakota in partial fulfillment of the requirements for the degree of Master of Arts Grand Forks, North Dakota December 1978 This thesis submitted by Mark A. Steiner in partial fulfillment of the requirements for the Degree of Master of Arts from the University of North Dakota is hereby approved by the Faculty Advisory Committee under whom the work has been done. (Chairman) .// ' (r~· _j {~µ..~ Dean of the Graduate School 11 Permission PETROLOGY OF SANDSTONES FROM THE BULLION CREEK AND SENTINEL BUTTE FORMATIONS (PALEOCENE), Title------------'-'--=----~------------------- LITTLE MISSOURI BADLANDS, NORTH DAKOTA In presenting this thesis in partial fulfillment of the require ments for a graduate degree from the University of North Dakota, I agree that the Library of this University shall make it freely avail able for inspection. -
Basin-Margin Depositional Environments of the Fort Union and Wasatch Formations in the Buffalo-Lake De Smet Area, Johnson County, Wyoming
U.S. DEPARTMENT OF INTERIOR GEOLOGICAL SURVEY Basin-Margin Depositional Environments of the Fort Union and Wasatch Formations in the Buffalo-Lake De Smet area, Johnson County, Wyoming By Stanley L. Obernyer Open-File Report 79-712 1979 Contents Page Abstract 1 Introduction 5 Methods of investigation 8 Previ ous work - 9 General geol ogy 10 Acknowledgments 16 Descriptive stratigraphy of the Fort Union and Wasatch Formations 18 Fort Union Formation- 18 Lower member 20 Conglomerate member 21 Wasatch Formation 30 Kingsbury Conglomerate Member 32 Moncrief Member 38 Coal-bearing strata Wasatch Formation 45 Conglomeratic sandstone sequence 46 The Lake De Smet coal bed 53 Very fine to medium-grained sandstone sequence 69 Fossil marker beds 78 Environments of Deposition 79 General 79 Alluvial fan environment 82 Braided stream environments 86 Alluvial valley environments 89 Tectonics and Sedimentation 92 Conglomerates and tectonics- 92 Coals and tectonics 98 Conclusions 108 References 111 11 ILLUSTRATIONS Plates Plate 1. Bedrock geologic map of the Buffalo-Lake De Smet area, Johnson County, Wyoming In pocket 2. Geologic cross sections along the Bighorn Mountain Front, Buffalo-Lake De Smet area, Johnson County, Wyoming In pocket FIGURES Page Figure 1. Location map sh wing the major structural units surround ing the Powder River Basin, Wyoming and Montana 7 2. Composite geologic section of the rocks exposed in in the Buffalo-Lake De Smet area- 11 3. Generalized geologic map of the Powder River Basin 12 4. Isopach map of the Fort Union and Wasatch Formations, Powder River Basin, from Curry (1971) 14 5. Generalized stratigraphic column of the conglomerate sequences 19 6. -
The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska
CORE Metadata, citation and similar papers at core.ac.uk Provided by UNL | Libraries University of Nebraska - Lincoln DigitalCommons@University of Nebraska - Lincoln Bulletin of the University of Nebraska State Museum Museum, University of Nebraska State 1967 The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska C. Bertrand Schultz University of Nebraska Charles H. Falkenbach Nebraska State Museum Carl F. Vondra American Museum of Natural History Follow this and additional works at: https://digitalcommons.unl.edu/museumbulletin Part of the Entomology Commons, Geology Commons, Geomorphology Commons, Other Ecology and Evolutionary Biology Commons, Paleobiology Commons, Paleontology Commons, and the Sedimentology Commons Schultz, C. Bertrand; Falkenbach, Charles H.; and Vondra, Carl F., "The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska" (1967). Bulletin of the University of Nebraska State Museum. 58. https://digitalcommons.unl.edu/museumbulletin/58 This Article is brought to you for free and open access by the Museum, University of Nebraska State at DigitalCommons@University of Nebraska - Lincoln. It has been accepted for inclusion in Bulletin of the University of Nebraska State Museum by an authorized administrator of DigitalCommons@University of Nebraska - Lincoln. BULLETIN OF The University of Nebraska State Museum VOLUME 6 , NUMBER 4 SEPTEMBER 1967 C. Bertrand Schultz Charles H. Falkenbach Carl F. Vondra The Brule-Gering (Oligocene-Miocene) Contact in the Wildcat Ridge Area of Western Nebraska A Guide for the Stratigraphic Collecting of Fossil Mammals The University of Nebraska The Board of Regents RICHARD E. ADKINs J. G. ELLIOTI B. N. GREENBERG, M.D. RICHARD L. -
County of Riverside General Plan Reche Canyon/Badlands Area Plan
County of Riverside General Plan Reche Canyon/Badlands Area Plan COUNTY OF RIVERSIDE Transportation and Land Management Agency 4080 Lemon Street, 12th Floor Riverside, CA 92501-3634 Phone: (951) 955-3200, Fax: (951) 955-1811 October 2011 County of Riverside General Plan Reche Canyon/Badlands Area Plan TABLE OF CONTENTS Vision Summary.......................................................................................................................................................... iv Introduction ................................................................................................................................................................. 1 A Special Note on Implementing the Vision ........................................................................................................ 2 Location ........................................................................................................................................................................ 3 Features ........................................................................................................................................................................ 7 Setting ....................................................................................................................................................................... 7 Unique Features ........................................................................................................................................................ 7 Badlands/Norton Younglove Preserve -
Hoganson, J.W., 2009. Corridor of Time Prehistoric Life of North
Corridor of Time Prehistoric Life of North Dakota Exhibit at the North Dakota Heritage Center Completed by John W. Hoganson Introduction In 1989, legislation was passed that directed the North Dakota and a laboratory specialist, a laboratory for preparation of Geological Survey to establish a public repository for North fossils, and a fossil storage area. The NDGS paleontology staff, Dakota fossils. Shortly thereafter, the Geological Survey signed now housed at the Heritage Center, consists of John Hoganson, a Memorandum of Agreement with the State Historical Society State Paleontologist, and paleontologists Jeff Person and Becky of North Dakota which provided space in the North Dakota Gould. This arrangement has allowed the Geological Survey, in Heritage Center for development of this North Dakota State collaboration with the State Historical Society of North Dakota, Fossil Collection, including offices for the curator of the collection to create prehistoric life of North Dakota exhibits at the Heritage Center and displays of North Dakota fossils at over 20 other museums and interpretive centers around the state. The first of the Heritage Center prehistoric life exhibits was the restoration of the Highgate Mastodon skeleton in the First People exhibit area (fig. 1). Mastodons were huge, elephant- like mammals that roamed North America at the end of the last Ice Age about 11,000 years ago. This exhibit was completed in 1992 and was the first restored skeleton of a prehistoric animal ever displayed in North Dakota. The mastodon exhibit was, and still is, a major attraction in the Heritage Center. Because of its popularity, it was decided that additional prehistoric life displays should be included in the Heritage Center exhibit plans. -
Paleogene and Neogene Time Scale of GTS 2012 Paleogene Neogene N
Paleogene and Neogene Time Scale of GTS 2012 Paleogene Neogene N. Vandenberghe 1, F.J. Hilgen 2 and R.P. Speijer 3 F.J. Hilgen 1, L.J. Lourens 2 and J.A. Van Dam 3 1. Department of Earth and Environmental Sciences, K. U. Leuven, Celestijnenlaan 200E, B - 3001 Leuven, Belgium, [email protected] 1. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands, [email protected] 2. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3584 CD Utrecht, The Netherlands, [email protected] 2. Department of Earth Sciences, Utrecht University, Budapestlaan 4, 3508 TA Utrecht, The Netherlands, [email protected] 3. Department of Earth and Environmental Sciences, K. U. Leuven, Celestijnenlaal 200E, B - 3001 Leuven, Belgium, [email protected] 3. Institut Català de Paleontologia Miquel Crusafont (ICP), Campus de la UAB, Mòdul ICP, E-08193 cerdanyola del Vallès, Spain, [email protected] Of the 9 Paleogene stages, only 3 remain to be formally defined: the Bartonian and Priabonian stages of upper Paleogene Time Scale Eocene and the Chattian (base of upper Oligocene). Larger 18 13 AGE Epoch/Age Polarity Mega- Dinoflagellate Cysts North American O C AGE -1.0 -0.5 -0.5 Of the 8 Neogene stages, only 2 remain to be formally defined: the Burdigalian and Langhian stages of lower and middle Mio- (Ma) Chron Cycles Planktonic Foraminifera Benthic Calcareous Nannofossils Radiolarians NALMA MP European Mammals ALMA SALMA 0.0 0.5 1.0 1.5 2.0 0.0 0.5 1.0 1.5 2.0 2.5 Age (Stage) (Ma) During the Paleogene, the global climate, being warm (Stage) Northwestern Europe Mammals other zones Foraminifera ELMA R T low latitude southern high latitude until the late Eocene, shows a significant cooling trend cene. -
Grand Canyon National Park Service U.S
National Park Grand Canyon National Park Service U.S. Department of the Interior The Painted Map by Erwin Ralsz WHAT IS The Painted Desert is a well-known Formation. While several rock layers in THE PAINTED DESERT? Arizona landscape of very colorful "bad northeastern Arizona are colorful, it is the lands" extending across northeastern particular beauty of the Chinle Formation Arizona. (Badlands are intricately dis that gave rise to the notion of a Painted sected, barren, and rounded landscapes that Desert. Although the Chinle Formation can typically occur in arid regions where weak be seen elsewhere, in the Painted Desert the rock is prevalent). The Painted Desert is exposure of this rock is long and continu distinctly defined by exposures of a rock ous. layer known as the Chinle (Chin-lee) The Painted Desert is exposed in a of Winslow, Arizona along State Highway WHERE TO SEE band of rock trending northwest from 87. Winslow is 140 miles from Grand THE PAINTED DESERT Holbrook, Arizona to The Gap, Arizona. Canyon's South Rim. This band is wider in the Holbrook area and narrows significantly to the northwest. Few Closest to Grand Canyon, the Painted roads provide access to the Painted Desert. Desert is exposed in a narrow band along U.S. Highway 89 from about 3 miles north Unquestionably, the most famous part of Cameron, Arizona (at milepost#470) to of the Painted Desert is at Petrified Forest the small village of The Gap farther north. National Park, 190 miles from the South A small but visually striking example of the Rim of Grand Canyon. -
Constraints on the Timescale of Animal Evolutionary History
Palaeontologia Electronica palaeo-electronica.org Constraints on the timescale of animal evolutionary history Michael J. Benton, Philip C.J. Donoghue, Robert J. Asher, Matt Friedman, Thomas J. Near, and Jakob Vinther ABSTRACT Dating the tree of life is a core endeavor in evolutionary biology. Rates of evolution are fundamental to nearly every evolutionary model and process. Rates need dates. There is much debate on the most appropriate and reasonable ways in which to date the tree of life, and recent work has highlighted some confusions and complexities that can be avoided. Whether phylogenetic trees are dated after they have been estab- lished, or as part of the process of tree finding, practitioners need to know which cali- brations to use. We emphasize the importance of identifying crown (not stem) fossils, levels of confidence in their attribution to the crown, current chronostratigraphic preci- sion, the primacy of the host geological formation and asymmetric confidence intervals. Here we present calibrations for 88 key nodes across the phylogeny of animals, rang- ing from the root of Metazoa to the last common ancestor of Homo sapiens. Close attention to detail is constantly required: for example, the classic bird-mammal date (base of crown Amniota) has often been given as 310-315 Ma; the 2014 international time scale indicates a minimum age of 318 Ma. Michael J. Benton. School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, U.K. [email protected] Philip C.J. Donoghue. School of Earth Sciences, University of Bristol, Bristol, BS8 1RJ, U.K. [email protected] Robert J. -
The Cretaceous-Tertiary Boundary Interval in Badlands National Park, South Dakota
The Cretaceous-Tertiary Boundary Interval in Badlands National Park, South Dakota Philip W. Stoffer1 Paula Messina John A. Chamberlain, Jr. Dennis O. Terry, Jr. U.S. Geological Survey Open-File Report 01-56 2001 U.S. DEPARTMENT OF THE INTERIOR Gale A. Norton, Secretary U.S. GEOLOGICAL SURVEY Charles G. Groat, Director The Cretaceous/Tertiary (K-T) boundary study interval at the Rainbow Colors Overlook along Badlands Loop Road, North Unit of Badlands National Park. This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey (USGS) editorial standards or with the North American Stratigraphic Code. Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government. 1345 Middlefield Road, Menlo Park, CA 94025 http://geopubs.wr.usgs.gov/open-file/of01-056/ ABSTRACT A marine K-T boundary interval has been identified throughout the Badlands National Park region of South Dakota. Data from marine sediments suggest that deposits from two asteroid impacts (one close, one far away) may be preserved in the Badlands. These impact- generated deposits may represent late Maestrichtian events or possibly the terminal K-T event. Interpretation is supported by paleontological correlation, sequence stratigraphy, magnetostratigraphy, and strontium isotope geochronology. This research is founded on nearly a decade of NPS approved field work in Badlands National Park and a foundation of previously published data and interpretations. The K-T boundary occurs within