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Found 11 results

  1. Gizzard stone

    Found in a small Yellowcat wash, outside Moab, UT while scouring for petrified wood. Not near a uranium mine. Partially exposed and nothing else like it around the area all day. The wash was in Morrison material. About 3” x 5”. Super shiny even without washing. Thanks!
  2. Gastrolith plus ?

    This is a gastrolith that has a mesh like fossil within it. Any Ideas of what the mesh/comb could be?
  3. Gastrolith question

    Amateur alert: i am NOT a professional paleontologist; I am a semi retired therapist who happens to be a paleontology hobbyist. I've seen several things advertised as gastroliths, and the prices seem easily doable. But HOW in the world is a rock determined to be a gastrolith, and not just a smoothish-rock that's a bit worn? A rock that has been inside a prehistoric animal (not just dinosaurs, I'm guessing?) is WILDLY cool, but a smoothed and tumbled rock is not.
  4. Didn't do the lick test on this one

    I found this odd little pebble in the Lance fm. in Wyoming over the summer and have yet to post on the forum so I thought I'd do so tonight. Anywhere else I probably wouldn't have kept it, but since I found it in a dinosaur bearing formation I was thinking it had the potential to be a gastrolith as it's completely smooth and rounded along with being a different color than most of the surrounding sediment I found it in, possibly hinting at transportation from its origin. I'd like to know your thoughts as I think it would be really cool to have found a dinosaur gastrolith. It's also not a piece of rabbit or deer scatt as it's not squishable (trust me I've accidentally picked them up before out there).
  5. gastrolith 1.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Gastrolith Utah Jurassic Period (199.6 to 145.5 million years ago) A gastrolith, also called a stomach stone or gizzard stones, is a rock held inside a gastrointestinal tract. Gastroliths in some species are retained in the muscular gizzard and used to grind food in animals lacking suitable grinding teeth. In other species the rocks are ingested and pass through the digestive system and are frequently replaced. The grain size depends upon the size of the animal and the gastrolith's role in digestion. Other species use gastroliths as ballast. Particles ranging in size from sand to cobbles have been documented. Some extinct animals such as sauropod dinosaurs appear to have used stones to grind tough plant matter. A rare example of this is the Early Cretaceous theropod Caudipteryx zoui from northeastern China, which was discovered with a series of small stones, interpreted as gastroliths, in the area of its skeleton that would have corresponded with its abdominal region. Aquatic animals, such as plesiosaurs, may have used them as ballast, to help balance themselves or to decrease their buoyancy, as crocodiles do.
  6. gastrolith 1.jpg

    From the album MY FOSSIL Collection - Dpaul7

    Gastrolith Utah Jurassic Period (199.6 to 145.5 million years ago) A gastrolith, also called a stomach stone or gizzard stones, is a rock held inside a gastrointestinal tract. Gastroliths in some species are retained in the muscular gizzard and used to grind food in animals lacking suitable grinding teeth. In other species the rocks are ingested and pass through the digestive system and are frequently replaced. The grain size depends upon the size of the animal and the gastrolith's role in digestion. Other species use gastroliths as ballast. Particles ranging in size from sand to cobbles have been documented. Some extinct animals such as sauropod dinosaurs appear to have used stones to grind tough plant matter. A rare example of this is the Early Cretaceous theropod Caudipteryx zoui from northeastern China, which was discovered with a series of small stones, interpreted as gastroliths, in the area of its skeleton that would have corresponded with its abdominal region. Aquatic animals, such as plesiosaurs, may have used them as ballast, to help balance themselves or to decrease their buoyancy, as crocodiles do.
  7. Hi all, I am interested in getting a gastrolith from the Cloverly Formation. It measures 2.2" by 1.2" As I understand though, the "typical" gastrolith comes from the Morrison Formation. Are Cloverly Formation ones common? I've read the various gastrolith threads here. This stone seem to fit the criteria of having certain smooth edges, and unevenly rough sections as well (the smoothness comes from rubbing against the dinosaurs stomach along with acid, rather than being evenly worn by water). Still, I would like your thoughts on this. Does it look like a genuine gastrolith? Thank you.
  8. First of all, hello to all of you on the Fossil forum- My name is Erik. newbie here, first post. Secondly, I'm exceptionally curious as to what organism in the fossil record has the first confirmed gastrolith (non-exolith) presence. I found and read through Fruitbat's research, and he had some very interesting articles about gastroliths, some of which I've seen, some of which I have not. I feel that Gastroliths are incredibly important to Archosaur evolution because they fulfill much the same role that differentiated teeth for thorough mastication do in mammals. Of course, proving that a differentiated tooth came from a synapsid is much, much easier than proving a gastrolith found outside of any skeletal remains (an exolith) came from an Archosaur. I'm sure many of you know most of this already... any information you can provide would be appreciated.
  9. Gastrolith question

    How to discern a gastrolith from a worn pebble? Thanks John
  10. 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 June 1, 2018. Eggs (Oolithids) and Nesting Sites Eggs and Nesting Sites - Precambrian Yin, L., et al. (2007). Doushantuo embryos preserved inside diapause egg cysts. Nature, Vol.446. Eggs and Nesting Sites - Cambrian Lin, J.-P., et al. (2006). Silicified egg clusters from a Middle Cambrian Burgess Shale-type deposit, Guizhou, south China. Geology, Vol.34, Number 12. Eggs and Nesting Sites - Ordovician Hegna, T.A., M.J. Martin and S.A.F. Darroch (2017). Pyritized and in situ trilobite eggs from the Ordovician of New York (Lorraine Group): implications for trilobite reproductive biology. Geology, Vol.45, Number 3. Eggs and Nesting Sites - Permian Abu Hamad, A., et al. (2016). First Permian Occurrence of the Shark Egg Capsule Morphotype Palaeoryxis Brongniart, 1828. Journal of Vertebrate Paleontology, e1112290. Eggs and Nesting Sites - Triassic Böttcher, R. (2010). Description of the shark egg capsule Palaeoxyris friessi n.sp. from the Ladinian (Middle Triassic) of SW Germany and discussion of all known egg capsules from the Triassic of the Germanic Basin. Palaeodiversity, 3. Fischer, J., B.J. Axsmith and S.R. Ash (2010). First unequivocal record of the hybodont shark egg capsule Palaeoxyris in the Mesozoic of North America. N.Jb.Geol.Paläont.Abh., Vol.255/3. Fischer, J., S. Voigt and M. Buchwitz (2007). First elasmobranch egg capsules from freshwater lake deposits of the Madygen Formation (Middle to Late Triassic, Kyrgyzstan, Central Asia). Freiberger Forschungshefte, C254, psf (15). Kitching, J.W. (1979). Preliminary Report on a Clutch of Six Dinosaurian Eggs from the Upper Triassic Elliot Formation, Northern Orange Free State. Palaeont.afr., 22. McLean, G. (2014). A Comparative Study of the Australian Fossil Shark Egg-Case Palaeoxyris duni, with Comments on Affinities and Structure. Proceedings of the Linnean Society of New South Wales, 136. Pott, C., et al. (2008). Fossil Insect Eggs and Ovipositional Damage on Bennettitalian Leaf Cuticles from the Carnian (Upper Triassic) of Austria. J.Paleont., 82(4). Eggs and Nesting Sites - Jurassic Araujo, R., et al. (2013). Filling the gaps of dinosaur eggshell phylogeny: Late Jurassic Theropod clutch with embryos from Portugal. Scientific Reports, 3:1924. Garcia, G., et al. (2006). Earliest Laurasian sauropod eggshells. Acta Palaeontologica Polonica, 51(1). Joyce, W.G. and D.K. Zelenitsky (2002). Turtle egg pseudomorphs from the Late Jurassic of Schamhaupten, Germany. Archaeopteryx, 20. Mateus, I., et al. (1998). Upper Jurassic Theropod Dinosaur embryos from Lourinhã (Portugal). Memórias da Academia Ciências de Lisboa, Vol.37. Popa, M.E. and A. Zaharia (2011). Early Jurassic Ovipositories on Bennettitalean Leaves from Romania. Acta Palaeontologica Romaniae, Vol.7. Reisz, R.R., et al. (2012). Oldest known dinosaurian nesting site and reproductive biology of the Early Jurassic sauropodomorph Massospondylus. PNAS, Early Edition. Ribeiro, V., et al. (2014). Two new theropod egg sites from the Late Jurassic Lourinhã Formation, Portugal. Historical Biology, Vol.26, Number 2. Russo, J., et al. (2017). Two new ootaxa from the late Jurassic : The oldest record of crocodylomorph eggs from the Lourinhã Formation, Portugal. PLoS ONE, 12(3). (Thanks to Fossildude19 for finding this one!) Russo, J., et al. (2014). Crocodylomorph eggs and eggshells from the Lourinhã Fm. (Upper Jurassic), Portugal. Comunicaҫões Geológicas, 101, Especial 1. Zaton, M. and A.A. Mironenko (2015). Exceptionally Preserved Late Jurassic Gastropod Egg Capsules. Palaios, Vol.30. Zaton, M., G. Niedzwiedzki and G. Pienkowski (2009). Gastropod Egg Capsules Preserved on Bivalve Shells from the Lower Jurassic (Hettangian) of Poland. Palaios, Vol.24. Eggs and Nesting Sites - Cretaceous Cretaceous Eggs and Nesting Sites - Africa/Middle East Garcia, G., et al. (2003). First Record of Dinosaur Eggshells and Teeth from the North-West African Maastrichtian (Morocco). Palaeovertebrata, Montpelier, 32(2-4). Gottfried, M.D., et al. (2004). Dinosaur Eggshell from the Red Sandstone Group of Tanzania. Journal of Vertebrate Paleontology, 24(2). Krassilov, V., et al. (2007). Insect eggs sets on angiosperm leaves from the Lower Cretaceous of Negev, Israel. Cretaceous Research, 28. Lawver, D.R., A.H. Rasoamiaramanana and I. Werneberg (2015). An Occurrence of Fossil Eggs from the Mesozoic of Madagascar and a Detailed Observation of Eggshell Microstructure. Journal of Vertebrate Paleontology, e973030. Cretaceous Eggs and Nesting Sites - Asia/Malaysia/Pacific Islands Bajpai, S., S. Srinivasan and A. Sahni (1997). Fossil Turtle Eggshells from Infratrappean Beds of Duddukuru, Anhdra Pradesh. Journal Geological Society of India, Vol.49. Buffetaut, E., et al. (2005). Minute theropod eggs and embryo from the Lower Cretaceous of Thailand and the dinosaur-bird transition. Naturwissenschaften, 00, Short Communications. D*ng, Z.-M. and P.J. Currie (1996). On the discovery of an oviraptorid skeleton on a nest of eggs at Bayan Mandahu, Inner Mongolia, People's Republic of China. Can.J.Earth Sci., 33. Fernandez, V., et al. (2015). Evidence of Egg Diversity in Squamate Evolutiion from Cretaceous Anguimorph Embryos. PLoS ONE, 10(7). Huh, M., et al. (2014). First record of a complete giant theropod egg clutch from Upper Cretaceous deposits, South Korea. Historical Biology, Vol.26, Number 2. Ji, Q., et al. (2004). Pterosaur egg with a leathery shell. Nature (Brief Communications), Vol.432. Johnston, P.A., D.A. Eberth and P.K. Anderson (1996). Alleged vertebrate eggs from Upper Cretaceous redbeds, Gobi Desert, are fossil insect (Coleoptera) pupal chambers: Fictovichnus new ichnogenus. Can.J. Earth Sci., 33. (Thanks to doushantuo for finding this one!) Khosla, A. (2001). Diagenetic Alterations of Late Cretaceous Dinosaur Eggshell Fragments of India. Gaia, Number 16. Khosla, A. and A. Sahni (1995). Parataxonomic Classification of Late Cretaceous Dinosaur Eggshells from India. Journal of the Palaeontological Society of India, Vol.40. Kim, J.Y., et al. (2011). Dinosaur Eggs from the Cretaceous Goseong Formation of Tongyeong City, Southern Coast of Korea. J.Paleont.Soc. Korea, Vol.27, Number 1. Lawver, D.R., et al. (2016). An Avian Egg from the Lower Cretaceous (Albian). Liangtoutang Formation of Zhejiang Province, China. Journal of Vertebrate Paleontology, e1100631. Liu, J.-Y., et al. (2013). A parataxonomic revision of spheroolithid eggs from the Upper Cretaceous Quantou Formation in Changtu, Liaoning. Vertebrata PalAsiatica, 51(4). Mikhailov, K.E. (2000). 28. Eggs and eggshells of dinosaurs and birds from the Cretaceous of Mongolia. In: The Age of Dinosaurs in Russia and Mongolia. Benton, M.J., et al. (eds.), Cambridge University Press. Mikhailov, K.E. (1996). New Genera of Fossil Eggs from the Upper Cretaceous of Mongolia. Paleontological Journal, Vol.30, Number 2. Mohabey, D.M. (1998). Systematics of Indian Upper Cretaceous Dinosaur and Chelonian Eggshells. Journal of Vertebrate Paleontology, 18(2). Norell, M.A., J.M. Clark and L.M. Chiappe (2001). An Embryonic Oviraptorid (Dinosauria: Theropoda) from the Upper Cretaceous of Mongolia. American Museum Novitates, Number 3315. Paik, I.S., H.J. kim. and M. Huh (2012). Dinosaur egg deposits in the Cretaceous Gyeongsang Supergroup, Korea: Diversity and paleobiological implications. Journal of Asian Earth Sciences, unpublished manuscript. Prasad, G.V.R., et al. (2015). Testudoid and crocodiloid eggshells from the Upper Cretaceous Deccan Intertrappean Beds of Central India. C.R. Palevol, 14. Sabath, K. (1991). Upper Cretaceous Amniotic Eggs from the Gobi Desert. Acta Palaeontologica Polonica, Vol.36, Number 2. Sahni, A. (2015). Dinosaur Nesting Sites of India: A Review. Science and Culture, Vol.81, Numbers 5-6. Srivastava, A.K. and R.S. Mankar (2015). Megaloolithus Dinosaur Nest from the Lameta Formation of Salbardi Area, Districts Amravati, Maharashtra, and Betul, Madhya Pradesh. Journal Geological Society of India, Vol.85. Srivastava, R., et al. (2015). Crocodilian Nest in a Late Cretaceous Sauropod Hatchery from the Type Lameta Ghat Locality, Jabalpur, India. PLoS ONE, 10(12). Varricchio, D.J. and D.E. Barta (2015). Revisiting Sabath's "Larger Avian Eggs" from the Gobi Cretaceous. Acta Palaeontologica Polonica, 60(1). Vianey-Liaud, M., S.L. Jain and A. Sahni (1987). Dinosaur Eggshells (Saurischia) from the Late Cretaceous Intertrappean and Lameta Formations (Deccan, India). Journal of Vertebrate Paleontology, 7(4). Wang, Q., et al. (2013). New forms of dictyoolithids from the Tiantai Basin, Zhejiang Province of China and a parataxonomic revision of the dictyoolithids. Vertebrata PalAsiatica, 51(1). Wang, Q., et al. (2013). New turtle egg fossil from the Upper Cretaceous of the Laiyang Basin, Shandong Province, China. Annals of the Brazilian Academy of Sciences, 85(1). Wang, Q., et al. (2012). A new oofamily of dinosaur egg from the Upper Cretaceous Tiantai Basin, Zhejiang Province, and its mechanism of eggshell formation. Chinese Science Bulletin, Vol.57, Numbers 28-29. Wang, Q., et al. (2011). New Ootypes of Dinosaur Eggs from the Late Cretaceous in Tiantai Basin, Zhejiang Province, China. Vertebrata PalAsiatica, 49(4). Wang, Q., et al. (2010). A New Oogenus of Elongatoolithidae from the Upper Cretaceous Chichengshan Formation of Tiantai Basin, Zhejiang Province. Vertebrata PalAsiatica, 48(2). Wang, X.-l., et al. (2017). Egg accumulation with 3D embryos provides insight into the life history of a pterosaur. Science, 358. Wang, X.-l., et al. (2012). Dinosaur Egg Faunas of the Upper Cretaceous Terrestrial Red Beds of China and Their Stratigraphical Significance. Journal of Stratigraphy, Vol.36, Number 2. Zhang, S.-K. (2010). A Parataxonomic Revision of the Cretaceous Faveoloolithid Eggs of China. Vertebrata PalAsiatica, 48(3). Zhang, S.K. and Q. Wang (2010). A New Oospecies of Ovaloolithids from Turpan Basin in Xinjiang, China. Vertebrata PalAsiatica, 48(1). Zhao, H. and Z.-K. Zhou (1999). A New Form of Elongatoolithid Dinosaur Eggs from the Lower Cretaceous Shahai Formation of Heishan, Liaoning Province. Vertebrata PalAsiatica, 37(4). Zhou, H. and Z.-K. Zhou (1998). Dinosaur Eggs from Xichuan Basin, China. Vertebrata PalAsiatica, 36(4). Zhou, Z. and Z.-C. Li (1988). A New Structural Type of Dinosaur Eggs from Anlu County, Hubei Province. Vertebrata PalAsiatica,26(2). Zou, S.-L., Q. Wang and X.-L. Wang (2013). A new oospecies of parafaveoolithids from the Pingxiang Basin, Jiangxi Province, of China. Vertebrata PalAsiatica, 51(2). Cretaceous Eggs and Nesting Sites - Europe (including Greenland and Siberia) Botfalvai, G., et al. (2017). Taphonomical and palaeoecological investigation of the Late Cretaceous (Maastrichtian) Tustea vertebrate assemblage (Romania, Hateg Basin) - insights into a unique dinosaur nesting locality. Palaeogeography, Palaeoclimatology, Palaeoecology, 268. Codrea, V., et al. (2002). 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Helicerina siciliana n.sp., a new anomuran coprolite from Upper Triassic reef limestones near Palermo (Sicily). Bull.Soc.Paleont.It., Vol.18, Number 2. Zaton, M., et al. (2015). Coprolites of Late Triassic carnivorous vertebrates of Poland: An integrative approach. Palaeogeography, Palaeoclimatology, Palaeoecology, 430. Coprolites - Jurassic Buckland, W. (1829). XII. On the Discovery of Coprolites, or Fossil Faeces, in the Lias at Lyme Regis, and in other Formations. Geol.Trans. 2nd Series, Vol.III. Kietzmann, D.A., et al. (2010). Crustacean microcoprolites from the Upper Jurassic - Lower Cretaceous of the Neuquen Basin, Argentina: Systematics and biostratigraphic implications. Acta Palaeontologica Polonica, 55(2). Senowbari-Daryan, B., J. Lazăr and I.I. Bucur (2013). Favreina carpathica n.ichnosp. (Crustacean Microcoprolite) from the Middle Jurassic of Rucăr-Bran Zone (Southern Carpathians, Romania). Revista Italiana di Paleontologia e Stratigrafia, Vol.119, Number 2. Coprolites - Cretaceous Cretaceous Coprolites - Africa/Middle East Senowbari-Daryan, B., et al. (2009). Crustacean microcoprolites from the Upper Cretaceous of Egypt. Revue de Paléobiologie, Genève, 28(2). Cretaceous Coprolites - Asia/Malaysia/Pacific Islands Ghosh, P., et al. (2003). Dinosaur coprolites from the Late Cretaceous (Maastrichtian) Lameta Formation of India: isotopic and other markers suggest a C3 plant diet. Cretaceous Research, 24. Sonkusare, H., B. Samant and D.H. Mohabey (2017). Microflora from Sauropod Coprolites and Associated Sediments of Late Cretaceous (Maastrichtian) Lameta Formation of Nand-Dongargaon Basin, Maharashtra. Journal Geological Society of India, Vol.89. Cretaceous Coprolites - Europe (including Greenland and Siberia) Anagnostakis, S. (2013). Upper Cretaceous coprolites from the Münster Basin (northwestern Germany) - a glimpse into the diet of extinct animals. Masters Thesis - Lund University. Bajdek, P. (2013). Coprolite of a durophagous carnivore from the Upper Cretaceous Godula Beds, Outer Western Carpathians, Poland. Geological Quarterly, 57(2). Barrios-de Pedro, et al. (2018). Exceptional coprolite association from the Early Cretaceous continental Lagerstätte of Las Hoyas, Cuencas, Spain. PLoS ONE, 13(5). Mansby, U. (2009). Late Cretaceous coprolites from the Kristianstad Basin, southern Sweden. Bachelors Thesis - Geologiska institutionen Centrum for GeoBiosfarsvetenskap, Lunds universitet. Milàn, J., et al. (2015). First Record of a Vertebrate Coprolite from the Upper Cretaceous (Maastrichtian) Chalk of Stevns Klint, Denmark. Fossil Record 4, New Mexico Museum of Natural History and Science Bulletin 67. Segesdi, M., et al. (2017). First report on vertebrate coprolites from the Upper Cretaceous (Santonian) Csehbanya Formation of Iharkut, Hungary. Cretaceous Research, 74. Vajda, V., et al. (2016). Dietary and environmental implications of Early Cretaceous predatory dinosaur coprolites from Teruel, Spain. Palaeogeography, Palaeoclimatology, Palaeoecology, xxx. (Article in Press) Cretaceous Coprolites - North America Baghai-Riding, N.L. and J.N. DiBenedetto (2001). An Unusual Dinosaur Coprolite from the Campanian Aguja Formation, Texas. Gulf Coast Association of Geological Societies Transactions, Vol.LI. Becker, M.A. and J.A. Chamberlain (2006). Anomuran Microcoprolites from the Lowermost Navesink Formation (Maastrichtian), Monmouth County, New Jersey. Ichnos, 13. Broughton, P.L., F. Simpson and S.H. Whitaker (1978). Late Cretaceous Coprolites from Western Canada. Palaeontology, Vol.21, Part 2. Broughton, P.L., F. Simpson and S.H. Whitaker (1977). Late Cretaceous Coprolites from Southern Saskatchewan: Comments on Excretion Plasticity and Ichnological Nomenclature. Bulletin of Canadian Petroleum Geology, Vol.25, Number 5. Chin, K., J.H. Hartman and B. Roth (2009). Opportunistic exploitation of dinosaur dung: fossil snails in coprolites from the Upper Cretaceous Two Medicine Formation of Montana. Lethaia, Vol.42. Chin, K., et al. (1998). A king-sized theropod coprolite. Nature, Vol.393. Everhart, M.J. (2007). Remains of a pycnodont fish (Actinopterygii: Pycnodontiformes) in a coprolite; An uppermost record of Micropycnodon kansasensis in the Smoky Hills Chalk, western Kansas. Transactions of the Kansas Academy of Science, Vol.110, Numbers 1/2. Harrell, S.D. and D.R. Schwimmer (2010). Coprolites of Deinosuchus and Other Crocodylians from the Upper Cretaceous of Western Georgia, USA. In: Crocodyle Tracks and Traces. Milàn, J. et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 51. Hollocher, K.T., T.C. Hollocher and J.K. Rigby (2010). A Phosphatic Coprolite Lacking Diagenetic Permineralization from the Upper Cretaceous Hell Creek Formation, Northeastern Montana: Importance of Dietary Calcium Phosphate in Preservation. Palaios, Vol.25(2). Hollocher, K.T., et al. (2001). Bacterial Residues in Coprolite of Herbivorous Dinosaurs: Role of Bacteria in the Mineralization of Feces. Palaios, Vol.16. Mahaney, W.C., et al. (2012). Coprolites from the Cretaceous Bearpaw Formation of Saskatchewan. Cretaceous Research, xxx. (Article in Press). Mehling, C.M. (2004). Occurrence of Callianassid Coprolites in the Cretaceous of New Jersey. The Mosasaur, 7. Schwimmer, D.R., R.E. Weems and A.E. Sanders (2015). A Late Cretaceous Shark Coprolite With Baby Freshwater Turtle Vertebrae Inclusions. Palaios, Vol.30. Suazo, T.L., et al. (2012). Coprolites Across the Cretaceous/Tertiary Boundary, San Juan Basin, New Mexico. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Sullivan, R.M. and S.E. Jasinski (2012). Coprolites from the Upper Cretaceous Fruitland, Kirtland and Ojo Alamo Formations, San Juan Basin, New Mexico. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Cretaceous Coprolites - South America/Central America/Caribbean Kietzmann, D.A. and R.M. Palma (2014). Early Cretaceous crustacean microcoprolites from Sierra de la Cara Cura, Neuquen Basin, Argentina: Taphonomy, environmental distribution, and stratigraphic correlation. Cretaceous Research, xxx. (Article in press) General Cretaceous Coprolites Poinar, G. and A.J. Boucot (2006). Evidence of intestinal parasites of dinosaurs. Parasitology, 133. Coprolites - Paleocene Milan, J. (2010). Coprolites from the Danian Limestone (Lower Paleocene) of Faxe Quarry, Denmark. In: Crocodyle tracks and traces. Milan, J., et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 51. Milan, J. and A.P. Hunt (2016). Daniacopros hofstedtae, Ichnogen. et Ichnosp.nov., A New Vertebrate Coprolite Ichnotaxon from the Lower Danian Stevns Klint Formation of the Hammelev Limestone Quarry, Denmark. In: Fossil Record 5. Sullivan, R.M. and S.G. Lucas (eds.), New Mexico Museum of Natural History, Bulletin 74. Coprolites - Eocene Diedrich, C.G. and H. Felker (2012). Middle Eocene Shark Coprolites from Shallow Marine and Deltaic Coasts of the Pre-North Sea Basin in Central Europe. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Lucas, S.G., et al. (2012). Crocodylian Coprolites from the Eocene of the Zaysan Basin, Kazakstan. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Robin, N., et al. (2016). Scale insect larvae preserved in vertebrate coprolites (Le Quesnoy, France, Lower Eocene): paleoecological insights. Sci.Nat., 103: 85. Coprolites - Miocene Dentzien-Dias, P., et al. (2018). Paleoecological and taphonomical aspects of the Late Miocene vertebrate coprolites (Urumaco Formation) of Venezuela. Palaeogeography, Palaeoclimatology, Palaeoecology, 490. Godfrey, S.J. and J.B. Smith (2010). Shark-bitten vertebrate coprolites from the Miocene of Maryland. Naturwissenschaften, 97. Pesquero, M.D., et al. (2014). Calcium phosphate preservation of faecal bacteria negative moulds in hyaena coprolites. Acta Palaeontologica Polonica, 59(4). Sharma, K.M. and R. Patnaik (2010). Coprolites from the lower Miocene Baripada beds of Orissa. Current Science, Vol.99, Number 6. Coprolites - Pliocene Harrison, T. (2011). Chapter 14. Coprolites: Taphonomic and Paleoecological Implications. In: Paleontology and Geology of Laetoli: Human Evolution in Context. Volume 1: Geology, Geochronolgy, Paleoecology and Paleoenvironment. Harrison, T. (ed.), Vertebrate Paleobiology and Paleoanthropology, Springer Science + Business Media B.V. Hunt, A.P., S.G. Lucas and A.J. Lichtig (2015). A Helical Coprolite from the Red Crag Formation (Plio-Pleistocene) of England. In: Fossil Record 4. Sullivan, R.M. and S.G. Lucas (eds.) New Mexico Museum of Natural History and Science, Bulletin 67. Coprolites - Pleistocene Pleistocene Coprolites - Africa/Middle East Bamford, M.K., et al. (2010). Botanical remains from a coprolite from the Pleistocene hominin site of Malapa, Sterkfontein Valley, South Africa. Palaeont.afr., 45. Carrión, J.S., et al. (2000). Palynology and palaeoenvironment of Pleistocene hyaena coprolites from an open-air site at Oyster Bay, Eastern Cape coast, South Africa. South African Journal of Science, 96. Djamali, M., et al. (2011). Pollen analysis from coprolites from a late Pleistocene-Holocene cave deposit (Wezmeh Cave, west Iran): insights into the late Pleistocene and late Holocene vegetation and flora of the central Zagros Mountains. Journal of Archaeological Science, 38. Scott, L., E. Marais and G.A. Brook (2004). Fossil hyrax dung and evidence of Late Pleistocene and Holocene vegetation types in the Namib Desert. Journal of Quaternary Science, 19(8). Pleistocene Coprolites - Australia/New Zealand Wood, J.R. and J.M. Wilmshurst (2014). Late Quaternary terrestrial vertebrate coprolites from New Zealand. Quaternary Science Reviews, 98. Wood, J.R. and J.M. Wilmshurst (2013). Pollen analysis from coprolites reveals dietary details of heavy-footed moa (Pachyornis elephantopus) and coastal moa (Euryapteryx curtus) from Central Otago. New Zealand Journal of Ecology, 37(1). Pleistocene Coprolites - Europe (including Greenland and Siberia) Alcover, J.A., et al. (1999). The diet of Myotragus balearicus Bate, 1909 (Artiodactyla: Caprinae), an extinct bovid from the Balearic Islands: evidence from coprolites. Biological Journal of the Linnean Society, 66. Argant, J. and V. Demitrijevic (2007). Pollen analyses of Pleistocene hyaena coprolites from Montenegro and Serbia. Annales Geologiques de la Peninsule Balkanique, 68. Carrión, J.S., et al. (2007). Pleistocene landscapes in central Iberia inferred from pollen analysis of hyena coprolites. Journal of Quaternary Science, 22(2). Carrión, J.S., et al. (2005). Palynology of badger coprolites from central Spain. Palaeogeography, Palaeoclimatology, Palaeoecology, 226. Diedrich, C.G. (2012). Topology of Ice Age Spotted Hyena Crocuta crocuta spelaea (Goldfuss, 1823) Coprolite Aggregate Pellets from the European Late Pleistocene and Their Significance at Dens and Scavenging Sites. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Lewis, M.D. (2011). Pleistocene Hyaena Coprolite Palynology in Britain: Implications for the Environments of Early Humans. In: The Ancient Human Occupation of Britain. Ashton, N., S.G. Lewis and C. Stringer (eds.), Developments in Quaternary Science, Amsterdam: The Netherlands. Sanz, M., et al. (2016). Not only hyenids: A multi-scale analysis of Upper Pleistocene carnivore coprolites in Cova del Coll Verdaguer (NE Iberian Peninsula). Palaeogeography, Palaeoclimatology, Palaeoecology, 443. Reumer, J., D. Mol and W. Borst (2010). The first Late Pleistocene coprolite of Crocuta crocuta spelaea from the North Sea. DEINSEA, 14. Welker, F., et al. (2014). Analysis of coprolites from the extinct mountain goat Myotragus balearicus. Quaternary Research, 81. Pleistocene Coprolites - North America Gill, F.L., et al. (2009). Lipid analysis of a ground sloth coprolite. Quaternary Research, 72. Poinar, H.N., et al. (2003). Nuclear Gene Sequences from a Late Pleistocene Sloth Coprolite. Current Biology, Vol.13. Poinar, H.N., et al. (1998). Molecular Coproscopy: Dung and Diet of the Extinct Ground Sloth Nothrotheriops shastensis. Science, Vol.281. General Pleistocene Coprolites Bon, C., et al. (2012). Coprolites as a source of information on the genome and diet of the cave hyena. Proc.R.Soc. B, Published online. General Coprolites (Feces) Chame, M. (2003). Terrestrial Mammal Feces: a Morphometric Study and Description. Mem.Inst.Oswaldo Cruz, Vol.98(Suppl.1). Chase, B.M., et al. (2012). Rock hyrax middens: a palaeoenvironmental archive for southern African drylands. Quaternary Science Reviews, 56. Chin, K. (2002). Analysis of Coprolites Produced by Carnivorous Vertebrates. Paleontological Society Papers, Vol.8. Duffin, C.J. (2009). "Records of warfare...embalmed in the everlasting hills": a History of Early Coprolite Research. Mercian Geologist, 17(2). Hunt, A.P. and S.G. Lucas (2013). The Significance of Vertebrate Coprolites in Late Paleozoic (and Younger) Lagerstatten. In: The Carboniferous-Permian Transition. Lucas, S.G., et al. (eds.). New Mexico Museum of Natural History and Science, Bulletin 60. Hunt, A.P. and S.G. Lucas (2012). Classification of Vertebrate Coprolites and Related Trace Fossils. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Hunt, A.P. and S.G. Lucas (2012). Descriptive Terminology of Coprolites and Recent Feces. In: Vertebrate Coprolites. Hunt, et al. (eds). New Mexico Museum of Natural History and Science, Bulletin 57. Hunt, A.P. and S.G. Lucas (2012). A Bromalite Collection at the National Museum of Natural History (Smithsonian Institution), With Descriptions of New Ichnotaxa and Notes on Other Significant Coprolite Collections. In: Vertebrate Coprolites. Hunt, et al. (eds.) New Mexico Museum of Natural History and Science, Bulletin 57. Hunt, A.P., et al. (2012). Vertebrate Coprolite Studies: Status and Prospectus. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Hunt, A.P., et al. (2012). Vertebrate Coprolites and Other Bromalites in National Park Service Areas. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Johnson, K.L., et al. (2008). A Tick from a Prehistoric Arizona Coprolite. The Journal of Parasitology, Vol.94, Number 1. Kulkarni, K.G. and R. Panchang (2015). New Insights into Polychaete Traces and Fecal Pellets: Another Complex Ichnotaxon? PLoS ONE, 10(10). (Thanks to doushantuo for finding this one!) McAllister, J.A. (1985). Reevaluation of the Formation of Spiral Coprolites. The University of Kansas Paleontological Contributions, Paper 114. Rawlence, N.J., et al. (2016). Dietary interpretations for extinct megafauna using coprolites, intestinal contents and stable isotopes: Complementary or contradictory? Quaternary Science Reviews, 142. Reinhard, K.J. and V.M. Bryant (1992). Coprolite Analysis: A Biological Perspective on Archaeology. Papers in Natural Resources, Paper 46. Scott, L., et al. (2003). Preservation and interpretation of pollen in hyaena coprolites: taphonomic observations from Spain and southern Africa. Palaeont. afr., 39. Thulborn, R.A. (1991). Morphology, preservation and palaeobiological significance of dinosaur coprolites. Palaeogeography, Palaeoclimatology, Palaeoecology, 83. Williams, M.E. (1972). The Origin of "Spiral Coprolites". The University of Kansas Paleontological Contributions, Paper 59. Wings, O. (2012). Gastroliths in Coprolites - A Call to Search. In: Vertebrate Coprolites. Hunt, et al. (eds.), New Mexico Museum of Natural History and Science, Bulletin 57. Wood, J.R. and J.M. Wilmshurst (2016). A protocol for subsampling Late Quaternary coprolites for multi-proxy analysis. Quaternary Science Reviews, 138. Wood, J.R., et al. (2013). Resolving lost herbivore community structure using coprolites of four sympatric moa species (Aves: Dinornithiformes). PNAS, Early Edition. Wood, J.R., et al. (2012). High-Resolution Coproecology: Using Coprolites to Reconstruct the Habits and Habitats of New Zealand's Extinct Upland Moa (Megalapteryx didinus). PLoS ONE, 7(6).
  11. Gastrolith In Coprolite?

    Hello All, I found this unique rock/fossil specimen at a local consignment store. It didn't have any information associated with it. I thought it may be a gastrolith imbedded in a coprolite due to the size and shape of the stone and the layering of the rock around it - but I may be way off. I live in northern Florida so it may have come from somewhere in this region. I would greatly appreciate your help identifying it! Weight: 170.4g or 6oz Size: 62mm by 50mm (Just bigger than a golf ball)