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Found 110 results

  1. ID on Micro Hell Creek Fm - Marine

    I was going through some matrix, from my last dinosaur dig trip, using a microscope to look for anything small. In that process I found something real small a micro. Its slightly larger than 1 mm. One of the smallest fossils I've ever found. Cephalic hook, dermal denticle or something else? Hell Creek Formation, South Dakota Any input would be appreciated. Sorry its the best picture I can take with my digital scope. Two images with a little different contrast. Thank you for looking.
  2. Unknown Owner of this Bone

    A number of years ago I acquired this bone from a fossil dealer near the Badlands of South Dakota. I'm looking to see if someone can ID this piece. I know that it is not Oligocene in age, and am not sure where he got it from.
  3. I enjoy reading old books. My grandfather worked for some years as a type setter and book binder and so I've inherited a number of great old reads from him. I'm currently working my way through A Treasury of Science from 1943 which is a compendium of older writings of varying ages. Similar to the nostalgia of watching old movies (or more like curiosity of watching movies that pre-date me) I find it interesting to read about the current level knowledge that is captured in those pages when reading from a vantage point some distance in the future (hopefully with an expanded view on the subject material). What Darwin labored with in chapter after chapter of his On the Origin of Species can now be succinctly stated in a few paragraphs in a Wikipedia article. Reading older or even antiquarian books makes me feel like a time traveler from the future (which, in fact, is pretty much what I am--relatively speaking). In a chapter of the treasury I'm currently reading called Flowering Earth, the author (Donald Culross Peattie) wrote in 1939 about the history of plant life on the planet. From the first protozoans to gain energy from chlorophyll through the ages of stromatolites, the fern and lycopod forests that gave us our coal, the early conifers including the Sequoia that shared the planet with dinosaurs, the cycads, and finally angiosperms and the rise of the modern plants. Quite an enjoyable read with the more eloquent and flowery (no pun intended) writing style of the 1930s. Here is a page on cycads that I read last night: What caught my eye while reading this was, of course, the existence of the Cycad National Monument. Why hadn't I heard of this before? Sure, there are infinitely more things that I'm unaware of than what I can hold in my brain at one time but surely I would have come across this before. Last night I made note to formally put this place on my short list of places to visit in South Dakota (there are apparently a couple obscure modest size sculptures to see there as well ). This morning while researching the Fossil Cycad National Monument I was disheartened to read that I'd missed my chance at seeing it by over half a century. It turns out that without proper protection that Professor G. R. Wieland's efforts to protect this outcropping of important Cretaceous cycad fossils were in vain. Vandals slowly stripped all the remaining visible fossils from this location and the national monument status was withdrawn in 1957. https://en.wikipedia.org/wiki/Fossil_Cycad_National_Monument In an effort to use this sad state of affairs as an example it has become a cautionary tale to inspire existing notable places to better protect their precious treasures. https://www.npca.org/articles/1008-gone-but-not-forgotten http://nature.nps.gov/geology/nationalfossilday/fossil_cycad.cfm http://www.nationalparkstraveler.com/2008/08/pruning-parks-delisted-over-half-century-ago-fossil-cycad-national-monument-1922-1956-cautionary-tal2805 I believe our membership has more respect for fossils and would never have taken part in this national monument's decimation and dissolution so I post this here mainly because I found it interesting (and sad) and because this tale seems to have faded from popular memory through the years. It provides a good example as to why some places require management and protection--real protection (not just a proclamation by the President). Cheers. -Ken
  4. I bought this opalized ammonite last month from a gentleman in Westerly, Rhode Island. Here's where he got it...
  5. These are a few of the pdf files (and a few Microsoft Word documents) that I've accumulated in my web browsing. MOST of these are hyperlinked to their source. If you want one that is not hyperlinked or if the link isn't working, e-mail me at joegallo1954@gmail.com and I'll be happy to send it to you. Please note that this list will be updated continuously as I find more available resources. All of these files are freely available on the Internet so there should be no copyright issues. Articles with author names in RED are new additions since May 25, 2017. United States Faunas, Localities and Stratigraphy (by State) Ohio Ohio - Ordovician Fuentes, S.R. (2003). Faunal Distribution Across the Ordovician-Silurian Boundary in Ohio and Ontario. Masters Thesis - University of Cincinnati. Hansen, M.C. (1997). The Geology of Ohio - The Ordovician. Ohio Geology, Department of Natural Resources. Holland, S.M., et al. (2001). The Detection and Importance of Subtle Biofacies within a Single Lithofacies: The Upper Ordovician Kope Formation of the Cincinnati, Ohio Region. Palaios, Vol.16. Tomescu, A.M.F. (2004). Late Ordovician-Early Silurian Terrestrial Biotas of Virginia, Ohio, and Pennsylvania: An Investigation into the Early Colonization of Land. Ph.D. Dissertation - Ohio University. (284 pages) Ohio - Silurian Brett, C.E., et al. (2012). Revised Telychian-Sheinwoodian (Silurian) stratigraphy of the Laurentian mid-continent: building uniform nomenclature along the Cincinnati Arch. Bulletin of Geosciences, 87(4). Foerste, A.F. (1919). Silurian Fossils from Ohio, With Notes on Related Species from Other Horizons. The Ohio Journal of Science, Vol.XIX, Number 7. Foerste, A.F. (1917). Notes on Silurian Fossils from Ohio and Other Central States. The Ohio Journal of Science, Vol.XVII, Number 7. Fuentes, S.R. (2003). Faunal Distribution Across the Ordovician-Silurian Boundary in Ohio and Ontario. Masters Thesis - University of Cincinnati. Horvath, A.L. (1969). Relationships of Middle Silurian Strata in Ohio and West Virginia. The Ohio Journal of Science, Vol.69, Number 6. Tomescu, A.M.F. (2004). Late Ordovician-Early Silurian Terrestrial Biotas of Virginia, Ohio, and Pennsylvania: An Investigation into the Early Colonization of Land. Ph.D. Dissertation - Ohio University. (284 pages) Ohio - Devonian Brett, C.E. (1999). 15. Middle Devonian Arkona Shale of Ontario, Canada, and Silica Shale of Ohio, USA. In: Fossil Crinoids. Hess, H., et al. (eds.), Cambridge University Press. Camp, M.J. and C.B. Hatfield (1991). Middle Devonian (Givetian) Silica Formation of Northwest Ohio - Desciption and Road Log. Ohio J.Sci., 91(1). Carr, R.K. and G.L. Jackson (2008). The Vertebrate Fauna of the Cleveland Member (Famennian) of the Ohio Shale. Ohio Geological Survey Guidebook 22. Denison, R.H. (1960). Fishes of the Devonian Holland Quarry Shale, Ohio. Fieldiana Geology, Vol.11, Number 10. Ehlers, G.M., E.C. Stumm and R.V. Kesling (1951). Devonian Rocks of Southeastern Michigan and Northwestern Ohio. Contributions from the Museum of Paleontology - University of Michigan, Special Papers Number 7. Hoover, K.V. (1978 reprint). Devonian - Mississippian Shale Sequence in Ohio. State of Ohio Department of Natural Resources, Division of Geological Survey, Information Circular Number 27. Meek, F.B. (1871). Descriptions of New Species of Invertebrate Fossils from the Carboniferous and Devonian Rocks of Ohio. Proceedings of the Academy of Natural Sciences of Philadelphia, Vol.23, Number 1. Sparling, D.R. (1988). Middle Devonian Stratigraphy and Conodont Biostratigraphy, North-Central Ohio. Ohio J.Sci., Vol.88, Issue 1. Stauffer, C.R. (1916). The Relationships of the Olentangy Shale and Associated Devonian Deposits of Northern Ohio. The Journal of Geology, Vol.24, Number 5. Stauffer, C.R. (1908). The Devonian Section on Ten Mile Creek, Lucas County, Ohio. The Ohio Naturalist, Vol.VIII, Number 5. Stewart, G.A. (1930). Additional Species from the Silica Shale of Lucas County, Ohio. Ohio J.Sci., Vol.30, Issue 1. Stewart, G.A. (1927). Fauna of the Silica Shale of Lucas County. State of Ohio - Division of Geological Survey, Fourth Series, Bulletin 32. Stumm, E.C. and R.B. Chilman (1967). Check List of Fossil Invertebrates Described from the Middle Devonian Silica Formation of Northwestern Ohio and Southeastern Michigan. Contributions from the Museum of Paleontology - The University of Michigan, Vol.XXI, Number 7. Tillman, J.R. (1970). The Age, Stratigraphic Relationships, and Correlation of the Lower Part of the Olentangy Shale of Central Ohio. Ohio Journal of Science, Vol.70, Issue 4. Winslow, M.R. (1962). Plant Spores and Other Microfossils from Upper Devonian and Lower Mississippian Rocks of Ohio. United States Geological Survey, Professional Paper 364. Ohio - Carboniferous Hook, R.W. and D. Baird (1988). An Overview of the Upper Carboniferous Fossil Deposit at Linton, Ohio. Ohio J.Sci., 88(1). Hoover, K.V. (1978 reprint). Devonian - Mississippian Shale Sequence in Ohio. State of Ohio Department of Natural Resources, Division of Geological Survey, Information Circular Number 27. McComas, G.A. and R.H. Mapes (1988). Fauna Associated With the Pennsylvanian Floral Zones of the 7-11 Mine, Columbiana County, Northeastern Ohio. Ohio J.Sci., 88(1). Meek, F.B. (1871). Descriptions of New Species of Invertebrate Fossils from the Carboniferous and Devonian Rocks of Ohio. Proceedings of the Academy of Natural Sciences of Philadelphia, Vol.23, Number 1. Szmuc, E.J. (1957). Stratigraphy and Paleontology of the Cuyahoga Formation of Northern Ohio. Vol.I. Ph.D. Thesis - The Ohio State University. (643 pages) Winslow, M.R. (1962). Plant Spores and Other Microfossils from Upper Devonian and Lower Mississippian Rocks of Ohio. United States Geological Survey, Professional Paper 364. Ohio - Pleistocene La Rocque, A. and J.F. Conley (1956). Two Pleistocene Molluscan Faunules from Hunter's Run, Fairfield County, Ohio. The Ohio Journal of Science, 56(6). Miller, B.B. and A.H. Wittine (1972). The Origin of Late Pleistocene Deposits at Garfield Heights, Cuyahoga County, Ohio. The Ohio Journal of Science, Vol.72, Number 6. Ohio - General Bond, R.H. (1947). Ohio Shale Conodonts. Ohio Journal of Science, Vol.XLVII, Issue 1. Condit, D.D. (1909). The Conemaugh Formation in Southern Ohio. The Ohio Naturalist, Vol.IX, Number 6. Coogan, A.H. Ohio's Surface Rocks and Sediments. Modified from: Fossils of Ohio, Feldmann, R.H. and M. Hackathorn (eds.). Ohio Division of Geological Survey, Bulletin 70. Eriksson, M. (2002). Tiny Hidden Treasures - The Microfossils of Ohio. GeoFacts Number 24, Ohio Department of Natural Resources, Division of Geological Survey. Hansen, M.C. (1994). Ohio Shale Concretions. Ohio Geology, Geofacts Number 4. La Rocque, A. and M.F. Marple (1970). Ohio Fossils. State of Ohio - Division of Geological Survey, Bulletin 54 (Ninth printing). (159 pages) Murphy, J.L. and L. Picking (1967). A New Marine Member in the Conemaugh Group of Ohio. Kirtlandia, Number 1. Sterki, V. (1920). Marl Deposits in Ohio and Their Fossil Mollusca. The Ohio Journal of Science, Vol.XX, Number 6. Stout, W. Some Locations for Fossil Plants in Ohio. Geological Survey of Ohio, Vol.XLV, Number 4. Wolford, J.J. (1930). The Stratigraphy of the Oregonia-Ft. Ancient Region, Southwestern Ohio. Ohio Journal of Science, Vol.30, Issue 5. Oklahoma Oklahoma - Ordovician Amsden, T.W. (1957). Catalog of Fossils from the Middle and Upper Ordovician of Oklahoma. Oklahoma Geological Survey, Circular 43. Amsden, T.A. and W.C. Sweet (1983). Upper Bromide Formation and Viola Group (Middle and Upper Ordovician) in Eastern Oklahoma. Oklahoma Geological Survey, Bulletin 132. Contains: Part I - Welling-Fite-Corbin Ranch Strata. Part II - Conodont Biostratigraphy of the Fite Formation and Viola Group. Part III - The Late Ordovician Brachiopod Genera Lepidocyclus and Hiscobeccus. Jenkins, W.A.M. (1970). Chitinozoa from the Ordovician Sylvan Shale of the Arbuckle Mountains, Oklahoma.Palaeontology, Vol.13, Part 2. Loch, J.D. (2007). Trilobite Biostratigraphy and Correlation of the Kindblade Formation (Lower Ordovician) of Carter and Kiowa Counties, Oklahoma. Oklahoma Geological Survey, Bulletin 149. Oklahoma - Devonian Nowaczewski, V. (2011). Biomarker and Paleontological Investigations of the Late Devonian Extinctions, Woodford Shale, Southern Oklahoma. Masters Thesis - University of Kansas. Oklahoma - Carboniferous Gibson, L.B. (1961). Palynology and Paleoecology of the Iron Post Coal (Pennsylvanian) of Oklahoma. Ph.D. Dissertation - The University of Oklahoma Graduate College. (251 pages) Kissel, R.A. (1999). Paleontology and Geology of an Upper Pennsylvanian Tetrapod Locality from the Ada Formation, Seminole County, Oklahoma. Masters Thesis - Texas Tech University. Lucas, S.G., et al. (2004). Middle Pennsylvanian Ichnofauna from Eastern Oklahoma, USA. Ichnos, 11. Roth, R. (1929). A Comparative Faunal Chart of the Mississippian and Morrow Formations of Oklahoma and Arkansas. Oklahoma Geological Survey, Circular Number 18. Slocum, R.C. (1955). Post-Boone Outliers of Northeastern Oklahoma. Oklahoma Geological Survey, Circular 35. Snider, L.C. (1915). Part I. Geology of a Portion of Northeastern Oklahoma. Part II. Paleontology of the Chester Group in Oklahoma. Oklahoma Geological Survey, Bulletin Number 24. Snider, L.C. (1914). The Mississippian Rocks of Northeastern Oklahoma. The Journal of Geology, Vol.22, Number 6. Oklahoma - Permian Olson, E.C. (1970). New and Little Known Genera and Species of Vertebrates from the Lower Permian of Oklahoma. Fieldiana Geology, Vol.18, Number 3. Olson, E.C. (1967). Early Permian Vertebrates of Oklahoma. Oklahoma Geological Survey, Circular 74. Olson, E.C. (1965). New Permian Vertebrates from the Chickasha Formation in Oklahoma. Oklahoma Geological Survey, Circular 70. Oklahoma - Cretaceous Allmon, W.D. and P.A. Cohen (2008). Palaeoecological significance of turitelline gastropod-dominated assemblages from the mid-Cretaceous (Albian-Cenomanian) of Texas and Oklahoma, USA. Cretaceous Research, 29. Bullard, F.M. (1928). Lower Cretaceous of Western Oklahoma. Oklahoma Geological Survey, Bulletin Number 47. Hedlund, R.W. (1966). Palynology of the Red Branch Member of the Woodbine Formation (Cenomanian), Bryan County, Oklahoma. Oklahoma Geological Survey, Bulletin 112. Oklahoma - Miocene Czaplewski, N.J., et al. (2001). Wild Horse Creek #1: A Late Miocene (Clarendonian-Hemphillian) Vertebrate Fossil Assemblage in Roger Mills County, Oklahoma. Oklahoma Geology Notes, Vol.61, Number 3. Dalquest, W.W., et al. (1996). Fossil Mammals from a Late Miocene (Clarendonian) Site in Beaver County, Oklahoma. Contributions in Mammalogy: A Memorial Volume Honoring Dr. J. Knox Jones, Jr., Museum of Texas Tech University. Oklahoma - Pliocene Kitts, D.B. (1957). A Pliocene Vertebrate Fauna from Ellis County, Oklahoma. Oklahoma Geological Survey, Circular 45. Oklahoma - Pleistocene Kirkland, H., et al. (1997). Some Late Pleistocene Fossils from Washita Local Fauna. Proc.Okla.Acad.Sci., 77. Smith, K.S. and R.L. Cifelli (2000). A Synopsis of the Pleistocene Vertebrates of Oklahoma. Oklahoma Geological Survey, Bulletin 147. Taylor, D.W. and C.W. Hibbard (1955). A New Pleistocene Fauna from Harper County, Oklahoma. Oklahoma Geological Survey, Circular Number 37. General Oklahoma Amsden, T.W. (1956). Catalog of Fossils from the Hunton Group, Oklahoma. Oklahoma Geological Survey, Circular 38. Blythe, J.G. (1957). The Atoka Formation on the North Side of the McAlester Basin. Ph.D. Dissertation - The University of Oklahoma Graduate College. (173 pages) Bullard, F.M. (1926). Geology of Marshall County Oklahoma. Oklahoma Geological Survey, Bulletin Number 39. Cline, L.M. (1960). Stratigraphy of the Late Paleozoic Rocks of the Oachita Mountains, Oklahoma. Oklahoma Geological Survey, Bulletin 85. Govett, R.W. (1959). Geology of Wagoner County, Oklahoma. Ph.D. Dissertation - The University of Oklahoma Graduate College. (225 pages)Johnson, K.S. (2008). Geologic History of Oklahoma. Educational Publications 9. Smith, A.E., R.O. Fay and J. Lobell (1997). Oklahoma Mineral Locality Index. Rocks and Minerals, Vol.72, Number 4. Stanley, T.M. (2001). Stratigraphy and Facies Relationships of the Hunton Group, Northern Arbuckle Mountains and Lawrence Uplift, Oklahoma. Oklahoma Geological Survey, Guidebook 33. Starke, J.M. (1961). Geology of Northeastern Cherokee County, Oklahoma. Oklahoma Geological Survey, Circular 57. Suneson, N.H. (2010). Petrified Wood in Oklahoma. The Shale Shaker, Vol.60, Number 6. Suneson, N.H. and K.V. Luza (1999). A Field Trip Guide to the Geology of the Black Mesa State Park Area, Cimarron County, Oklahoma. Oklahoma Geological Survey, Open-File Report OF4-99. Stratigraphy and Paleontology of the Hunton Group in the Arbuckle Mountains Region. Contains: Amsden, T.W. (1957). Part I. Introduction to Stratigraphy Stratigraphy and Paleontology of the Hunton Group in the Arbuckle Mountains Region. Amsden, T.W. (1958). Part II. Haragan Articulate Brachiopods Amsden, T.W. (1958). Part III. Supplement to the Henryhouse Brachiopods Boucot, A.J. and T.W. Amsden (1958). Part IV. New Genera of Brachiopods Stratigraphy and Paleontology of the Hunton Group in the Arbuckle Mountains Region Amsden, T.W. (1958). Part V. Bois d'Arc Articulate Brachiopods Stratigraphy and Paleontology of the Hunton Group in the Arbuckle Mountains Region Amsden, T.W. (1959). Part VI. Hunton Stratigraphy (329 pages) Ulrich, E.O. (1927). Fossiliferous Boulders in the Ouachita "Caney" Shale and the Age of the Shale Containing Them. Oklahoma Geological Survey, Bulletin Number 45. White, D. (1936). Fossil Plants from the Stanley Shale and Jackfork Sandstone in Southeastern Oklahoma and Western Arkansas. U.S. Geological Survey Professional Paper 186-C. Zidek, J. (1972). Oklahoma Paleoichthyology. Part I: A Review and Commentary. Oklahoma Geology Notes, Vol.32, Number 6. Oregon Dall, W.H. (1909). I. The Miocene of Astoria and Coos Bay, Oregon. U.S. Geological Survey, Professional Paper 59. Dillhoff, R.M., et al. (2009). Cenozoic paleobotany of the John Day Basin, central Oregon. The Geological Society of America, Field Guide 15. Dingus, L. (1990). Systematics, stratigraphy, and chronology for mammalian faunas (Late Arikareean to Hemingfordian) from the uppermost John Day Formation, Warm Springs, Oregon. PaleoBios, Vol.12, Numbers 47-48. Downing, K.F. (1992). Biostratigraphy, Taphonomy and Paleoecology of Vertebrates from the Sucker Creek Formation (Miocene) of Southeastern Oregon. Ph.D. Dissertation - The University of Arizona. Elftman, H.O. (1931). Pleistocene Mammals of Fossil Lake, Oregon. American Museum Novitates, Number 481. Fremd, T.J. (2010). Guidebook - John Day Fossil Beds National Monument (and surrounding basin), Oregon, USA. SVP Field Symposium - John Day Basin Field Conference. Hanna, G.D. (1920). Fossil Molluscs from the John Day Basin in Oregon, Contained in the Condon Museum of the University of Oregon. University of Oregon Publication, Vol.1, Number 6. Maguire, K.C., J.X. Samuels and M.D. Schmitz (2018). The fauna and chronostratigraphy of the middle Miocene Mascall type area, John Day Basin, Oregon, USA. PaleoBios, 35. Manchester, S.R. (1987). Oligocene fossil plants of the John Day Formation, Fossil, Oregon. Oregon Geology, Vol. 49, Number 10. McCornack, E.C. (1920). Contributions to the Pleistocene History of Oregon. University of Oregon Leaflet Series, Vol.6, No.3, Part 2. McLaughlin, W.N.F. (2012). Hawk Rim: A Geologic and Paleontological Description of a New Barstovian Locality in Central Oregon. Masters Thesis - The University of Oregon. Moore, E.J. (1976). Oligocene Marine Mollusks from the Pittsburg Bluff Formation in Oregon. United States Geological Survey Professional Paper 922. Retallack, G.J. (2004). Late Miocene climate and life on land in Oregon within a context of Neogene global change. Palaeogeography, Palaeoclimatology, Palaeoecology, 214. Retallack, G.J., et al. (1996). Reconstructions of Eocene and Oligocene plants and animals of central Oregon. Oregon Geology, Vol.58, Number 3. Ritland, R.M. (1969). The Nature of the Fossil Record in the Rocks of Eastern Oregon. Spectrum. Scharf, D.W. (1932). A Miocene Mammalian Fauna from Sucker Creek, Southeastern Oregon. Masters Thesis - California Institute of Technology. Shufeldt, R.W. (1913). Review of the Fossil Fauna of the Desert Region of Oregon, with a Description of Additional Material Collected There. Bulletin of the American Museum of Natural History, Vol.32, Article VI. (50 MB download) Stanley, G.D., C.A. McRoberts and M.T. Whalen (2008). Stratigraphy of the Triassic Martin Bridge Formation, Wallowa terrane: Stratigraphy and depositional setting. The Geological Society of America, Special Paper 442. Steere, M.L. (1957). Fossil Localities of the Sunset Highway Area, Oregon. The Ore-Bin, Vol.19, Number 5. Vallier, T.L. and H.C. Brooks (eds.)(1986). Geology of the Blue Mountains Region of Oregon, Idaho, and Washington. United States Geological Survey, Professional Paper 1435. Contains: Paleozoic and Mesozoic faunas of the Blue Mountains province: a review of their geologic implications and comments on papers in the volume. Late Triassic bivalves of the Martin Bridge Limestone, Hells Canyon, Oregon: taphonomy, paleoecology, paleozoogeography. Late Triassic coelenterate faunas of western Idaho and northeastern Oregon: implications for biostratigraphy and paleogeography. A Norian (Late Triassic) ichthyosaur from the Martin Bridge Limestone, Wallowa Mountains, Oregon. Jurassic ammonites and biostratigraphy of eastern Oregon and western Idaho. Conodont ages for limestones of eastern Oregon and their implications for pre-Tertiary melange terranes. Faunal affinities and tectonogenesis of Mesozoic rocks in the Blue Mountains province of eastern Oregon and western Idaho. Geologic implications of radiolarian-bearing Paleozoic and Mesozoic rocks from the Blue Mountains province, eastern Oregon. Van Tassel, J., J. Rinehart and L. Mahrt (2011). Late Pleistocene Airport Lane Fossil Site, La Grande, NE Oregon. Eastern Oregon Geology, Vol.8. Welton, B.J. (1972). Fossil Sharks in Oregon. The Ore Bin, Vol.34, Number 10. Pennsylvania Barnes, J.H. and W.D. Sevon (2014). The Geological Story of Pennsylvania. Pennsylvania Geological Survey, Educational Series 4. Cressler. W.L., et al. (2010). Terrestrialization in the Late Devonian: a paleoecological overview of the Red Hill site, Pennsylvania, USA. Geological Society, London, Special Publications, Vol.339. Daeschler, E.B. and W.L. Cressler (2011). Late Devonian paleontology and paleoenvironments at Red Hill and other fossil sites in the Catskill Formation of north-central Pennsylvania. The Geological Society of America, Field Guide 20. Hoskins, D.M. (1999). Common Fossils of Pennsylvania. Pennsylvania Geological Society, 4th Ser., Educational Series 2. Olsen, P.E. and J.J. Flynn (1989). Field Guide to the Vertebrate Paleontology of Late Triassic Age Rocks in the Southwestern Newark Basin (Newark Supergroup, New Jersey and Pennsylvania). The Mosasaur, 4. Read, C.B. (1955). Floras of the Pocono Formation and Price Sandstone in Parts of Pennsylvania, Maryland, West Virginia, and Virginia. U.S. Geological Society Professional Paper 263. Shaak, G.D. (1975). Diversity and Community Structure of the Brush Creek Marine Interval (Conemaugh Group, Upper Pennsylvanian), in the Appalachian Basin of Western Pennsylvania. Bulletin of the Florida Museum of Natural History, Vol.19, Number 2. Skinner, E.S. (2004). Taphonomy of Exceptionally Preserved Fossils from the Kinzers Formation (Cambrian), Southeastern Pennsylvania. Ph.D. Dissertation - The Ohio State University. Sullivan, R.M. and K.A. Randall (1996). Pennsylvania's Prehistoric Pachyderms. Natural History Notes of The State Museum of Pennsylvania, Number 2. Tomescu, A.M.F. (2004). Late Ordovician-Early Silurian Terrestrial Biotas of Virginia, Ohio, and Pennsylvania: An Investigation into the Early Colonization of Land. Ph.D. Dissertation - Ohio University. (284 pages) Walcott, C.D. (1896). The Cambrian Rocks of Pennsylvania. Bulletin of the United States Geological Survey, Number 134. (949 pages) Wanner, H.E. (1921). Some Faunal Remains from the Trias of York County, Pennsylvania. Proceedings of the Academy of Natural Sciences of Philadelphia, Vol.73, Number 1. South Carolina Campbell, M.R. and L.D. Campbell (2017). Preliminary Biostratigraphy and Molluscan Fauna of the Goose Creek Limestone of Eastern South Carolina. Tulane Studies in Geology and Paleontology, Vol.27, Numbers 1-4. Cooke, C.W. (1936). Geology of the Coastal Plain of South Carolina. Geological Survey, Bulletin 867. (218 pages) Edwards, L.E., et al. (1999). Physical Stratigraphy, Paleontology, and Magnetostratigraphy of the USGS-Santee Coastal Reserve Core (CHN-803), Charleston County, South Carolina. U.S. Geological Survey, Open-File Report 99-308. Gohn, G.S. (1992). Revised Nomenclature, Definitions, and Correlations for the Cretaceous Formations in USGS-Clubhouse Crossroads #1, Dorchester County, South Carolina. U.S. Geological Survey, Professional Paper 1518. Leidy, J. (1877). Description of Vertebrate Remains Chiefly from the Phosphate Beds of South Carolina. Journal of the Academy of Natural Sciences, Vol.VIII. Pugh, G.T. (1905). Pleistocene Deposits of South Carolina. With an Especial Attempt at Ascertaining what must have been the Environmental Conditions under which the Pleistocene Mollusca of the State lived. Ph.D. Thesis - Vanderbilt University. Sanders, A.E., R.E. Weems and L.B. Albright (2009). Formalization of the Middle Pleistocene "Ten Mile Hills Beds" in South Carolina With Evidence for Placement of the Irvingtonian-Rancholabrean Boundary. In: Papers on Geology, Vertebrate Paleontology, and Biostratigraphy in Honor of Michael O. Woodburne. Albright, L.B. (ed.), Museum of Northern Arizona Bulletin 65, Flagstaff. Schoch, R.M. (1985). Preliminary Description of a New Late Paleocene Land-Mammal Fauna from South Carolina, U.S.A.. Peabody Museum of Natural History, Postilla Number 196. Siple, G.E. (1957). Guidebook for the South Carolina Coastal Plain Field Trip, November 16-17, 1957. Carolina Geological Society. Stephenson, L.W. (1927). Additions to the Upper Cretaceous Invertebrate Faunas of the Carolinas. Proceedings U.S. National Museum, Vol.72, Number 10. Weems, R.E. (1998). 6. Actinopterygian Fish Remains from the Paleocene of South Carolina. Transactions of the American Philosophical Society, 88. South Dakota South Dakota - Jurassic Wright, R.P. (1973). Marine Jurassic of Wyoming and South Dakota: Its Paleoenvironments and Paleobiogeography. Papers on Paleontology, Number 2. South Dakota - Cretaceous Brenner, R.L., et al. (1981). Cretaceous Stratigraphy and Sedimentation in Northwest Iowa, Northeast Nebraska, & Southeast South Dakota. Iowa Geological Survey Guidebook, Series Number 4. Erickson, J.M. (1992). Subsurface Stratigraphy, Lithofacies and Paleoenvironments of the Fox Hills Formation (Maastrichtian: Late Cretaceous) Adjacent to the Type Area, North Dakota and South Dakota - Toward a More Holistic View. In: Proceedings of the F.D. Holland, Jr., geological symposium, 1992. Erickson, J.M. and J.W. Hoganson (eds.), North Dakota Geological Survey Miscellaneous Series Number 76. Johnson, K.R. (1996). Description of Seven Common Fossil Leaf Species from the Hell Creek Formation (Upper Cretaceous: Upper Maastrichtian), North Dakota, South Dakota and Montana. Proceedings of the Denver Museum of Natural History, Series 3, Number 12. Johnson, K.R., D.J. Nichols and J.H. Hartman (2002). Hell Creek Formation: A 2001 synthesis. Geological Society of America, Special Paper 361. (Thanks to troodon for pointing this one out!) Lloyd, E.R. and C.J. Hares (1915). The Cannonball Marine Member of the Lance Formation of North and South Dakota and Its Bearing on the Lance-Laramie Problem. The Journal of Geology, Vol.23, Number 6. Martin, J.E., J.L. Bertog and D.C. Parris (2007). Revised lithostratigraphy of the lower Pierre Shale Group (Campanian) of central South Dakota, including newly designated members. The Geological Society of America, Special Paper 427. Pearson, D.A., et al. (2002). Vertebrate biostratigraphy of the Hell Creek Formation in southwestern North Dakota and northwestern South Dakota. Geological Society of America, Special Paper 361. Waage, K.M. (1968). The Type Fox Hills Formation, Cretaceous (Maastrichtian), South Dakota - Part 1. Stratigraphy and Paleoenvironments. Peabody Museum of Natural History - Yale University, Bulletin 27. South Dakota - K/T Boundary Stoffer, P.W., et al. (2001). The Cretaceous-Tertiary Boundary Interval in Badlands National Park, South Dakota. United States Geological Survey, Open-File Report 01-56. South Dakota - Paleocene Cvancara, A.M. (1966). Revision of the Fauna of the Cannonball Formation (Paleocene) of North and South Dakota. Contributions from the Museum of Paleontology - The University of Michigan, Vol.XX, Number 10. South Dakota - Eocene Evans, J.E. (1999). Recognition and implications of Eocene tufas and travertines in the Chadron Formation, White River Group, Badlands of South Dakota. Sedimentology, 46. Harksen, J.C. and J.R. Macdonald (1969). Type Sections for the Chadron and Brule Formations of the White River Oligocene in the Big Badlands, South Dakota. South Dakota Geological Survey, Report of Investigations, Number 99. South Dakota - Oligocene Boyd, C.A. and E. Welsh (2014). Description of an Earliest Orellan Fauna from Badlands National Park, Interior, South Dakota and Implications for the Stratigraphic Position of the Bloom Basin Limestone Bed. Dakoterra, Vol.6. Harksen, J.C. and J.R. Macdonald (1969). Type Sections for the Chadron and Brule Formations of the White River Oligocene in the Big Badlands, South Dakota. South Dakota Geological Survey, Report of Investigations, Number 99. Martin, J.E. (2011). The Rosebud Problem Revisited. Proceedings of the South Dakota Academy of Science, Vol.90. Matthew, W.D. (1905). Notice of Two New Genera of Mammals from the Oligocene of South Dakota. American Museum of Natural History Bulletin, Vol.XXI, Article III. South Dakota - Miocene Harksen, J.C. (1974). Miocene Channels in the Cedar Pass Area, Jackson County, South Dakota. Department of Natural Resource Development - Geological Survey, Report of Investigations Number 111. Harksen, J.C., J.R. Macdonald and W.D. Sevon (1961). New Miocene Formation in South Dakota. State of South Dakota, State Geological Survey, Miscellaneous Investigations Number 3. Macdonald, J.R. (1963). The Miocene Faunas from the Wounded Knee Area of Western South Dakota. Bulletin of the American Museum of Natural History, Vol.125, Article 3. Martin, J.E. (2011). The Rosebud Problem Revisited. Proceedings of the South Dakota Academy of Science, Vol.90. Matthew, W.D. (1907). A Lower Miocene Fauna from South Dakota.Bulletin American Museum of Natural History, Vol.XXIII, Article IX. Skinner, M.F. and B.E. Taylor (1967). A Revision of the Geology and Paleontology of the Bijou Hills, South Dakota. American Museum Novitates, Number 2300. South Dakota - Pliocene Harksen, J.C. and M. Green (1971). Thin Elk Formation, Lower Pliocene, South Dakota. Science Center, University of South Dakota. Martin, R.A. and J.C. Harksen (1975). The Delmont Local Fauna, Blancan of South Dakota. Department of Natural Resource Development, South Dakota Geological Survey, Reprint Number 15. South Dakota - Pleistocene Pinsof, J.D. (1986). The Pleistocene Vertebrate Fauna of South Dakota. Masters Thesis - South Dakota School of Mines and Technology. General South Dakota Harksen, J.C. and J.R. Macdonald (1969). Guidebook to the Major Cenozoic Deposits of Southwestern South Dakota. South Dakota Geological Survey, Guidebook 2. Parris, D.C., G.A. Bishop and K.F. Higgins (2005). The Prehistoric Record of Fishes in South Dakota. Proceedings of the South Dakota Academy of Science, Vol.84. Retallack, G.J. (1983). A paleopedological approach to the interpretation of terrestrial sedimentary rocks: The mid-Tertiary fossil soils of Badlands National Park, South Dakota. Geological Society of America Bulletin, Number 94. Skinner, M.F., et al. (1968). Cenozoic Rocks and Faunas of Turtle Butte, South-Central South Dakota. Bulletin of the American Museum of Natural History, Vol.138, Article 7. Whitfield, R.P. (1877). Preliminary Report on the Paleontology of the Black Hills. U.S. Geographical and Geological Survey of the Rocky Mountain Region. (52 MB) Tennessee Amsden, T.W. (1949). Stratigraphy and Paleontology of the Brownsport Formation (Silurian) of Western Tennessee. Peabody Museum of Natural History, Bulletin 3. Bergstrom, S.M. (1973). Biostratigraphy and Facies Relations in the Lower Middle Ordovician of Easternmost Tennessee. American Journal of Science, Cooper Vol.273-A. Davis, K. Lower Devonian Fossils of Tennessee. Memphis Pink Palace Museum. DeSantis, L.R.G. and S.C. Wallace (2008). Neogene forests from the Appalachians of Tennessee, USA: Geochemical evidence from fossil mammal teeth. Palaeogeography, Palaeoclimatology, Palaeoecology, 266. Foerste, A.F. (1903). Silurian and Devonian Limestones of Western Tennessee. The Journal of Geology, Vol.XI, Number 7. Kornecki, K.M. (2014). Cretaceous Confluence in the Coon Creek Formation (Maastrichtian) of Mississippi and Tennessee, USA Taphonomy and Systematic Paleontology of a Decapod Konservat-Lagerstätte. Masters Thesis - Kent State University. (202 pages) Stettin, N. (1998). Fossil Hunting in Nashville. Tennessee Division of Geology. Wade, B. (1926). The Fauna of the Ripley Formation on Coon Creek, Tennessee. United States Geological Survey, Professional Paper 137. (359 pages) Wade, B. (1920). Recent Studies of the Upper Cretaceous of Tennessee. The Journal of Geology, Vol.XXVIII, Number 5. Walker, K.R. and K.F. Ferrigno (1973). Major Middle Ordovician Reef Tract in East Tennessee. American Journal of Science, Cooper Vol.273-A.
  6. Stylemys nebrascensis in situ

    From the album Fossil Discoveries

    I wanted to capture an angle that evoked the feeling of encountering this animal's fossilized remains where it may have actually died.

    © &copy

  7. Stylemys nebrascensis in situ

    From the album Fossil Discoveries

    I visited the Badlands National Park in spring 2016 and photographed this badly weathered fossil turtle where it died some 30 million years ago. I subsequently informed a park ranger where I had seen the specimen.

    © &copy

  8. Sphenodiscus 10

    From the album Sphenodiscus

  9. Sphenodiscus 8

    From the album Sphenodiscus

  10. Sphenodiscus 6

    From the album Sphenodiscus

  11. Sphenodiscus 5

    From the album Sphenodiscus

  12. Sphenodiscus 3

    From the album Sphenodiscus

  13. Sphenodiscus 1

    From the album Sphenodiscus

  14. This is from Western South Dakota. It is definitely a bone. It is super heavy and it feels like weighs well over 20 lbs. The "tip" has a hole going into the rest cavity of the bone that is all agatized. My foot in the photos is a size 12 men's to give a perspective on the size of it. What kind bone is it? And also what might it be worth?
  15. Bone ID? Upper Cretaceous

    Hello again, I've posted this fossil before on here a couple weeks back, but I did some more uncovering of the fossil and made a few additions from rock fragments I found surrounding the fossil, so it is more complete now. It is from the fox hills formation in South Dakota, with the depositional environment being lagoonal. Professional papers collecting samples from this formation list shark teeth, mosasaur teeth, bivalves, as well as dinosaur bone fragments being found here. I think we can safely rule out bivalves though haha. The brown end of the fossil looks to be a jointed end of the bone. The black "fracture" above my thumb in the first pic looks like a bone suture, something that occurs only in skulls of vertebrates. I'm no expert on sutures but this "crack" looks like it didn't occur after death of the animal. I haven't had this theory confirmed though. Thanks again!
  16. Fox Hills Large Concretion

    Broke open a large concretion, here's what was inside. I really need to learn proper prepping technique, smash and look probably not the best way to reveal specimens. Any more experienced with suggestions for SD Fox Hills prepping?
  17. Help With Oligocene Fossils

    Hi everyone. I am new to the forum and am hoping for some help identifying several oligocene/eocene vertebrate fossils. First is a small jaw section from the Brule or Chadron formation (from dry stream bed so not exactly sure) in northwest Nebraska. It looks like an oreodont to me but it seems too small. The second is a moderately large vertebra from the same location. Here I was thinking it looks like a titanothere vertebra but again it seems too small. Third is a scapula I think but from what I have not idea, also from the Nebraska location. Last is a tooth fragment from the Brule formation in South Dakota. I presume this is a partial canine of some sort but from what I'm not sure. Any input would be greatly appreciated. Thanks!
  18. 2 Cretaceous Teeth For Id

    I have these two teeth from the SD matrix that need IDs please.
  19. My First Id Post, Ammonite Id Help Please

    From central South Dakota, near the Missouri River. I'll try to get better images if necessary. Thanks!
  20. Cow Molar?

    This tooth was found by a culvert near (NE) Webster, SD. I think it is a cow molar, but would anyone have any idea of which one and it's age? Thanks!
  21. Oreodont Bones

    From the album Jerry's Really Old Stuff

    Assortment of bones from the White River Formation, South Dakota. Includes, Oreodont femur, upper part of humerous, mandible, articulated foot bones carpals and metacarpals and articulated vertebrae in matrix. Also includes complete femur of paleolagus (rabbit), Oligocene era.
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