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Found 623 results

  1. Marine Mammal Vertebrae?

    Bone fragment found on the York River in Virginia. It is the Yorktown Formation, Pliocene epoch. I'm wondering if it is a vertebrae fragment, and what species it might belong to. It's convex on one side, and concave on the other.
  2. Heres a fun thread for those to show off their widest and fattest looking megalodon teeth fossils in thier collections. I'll set the tone with the widest fat boy in my collection, I don't have digital calipers but it measure roughly 5.4 inches wide by 6.1 inches long. When I close my hand together it looks even more monstrous. Share yours and join the wide boyclub Got the idea while thinking about what the widest megalodon tooth ever found measures, if anyone does know do share in this thread!
  3. Hard time identifying

    Found in landfill behind my building. Can’t seem to find pictures or info. Any help (as always) well appreciated
  4. Mysterious coral fossil

    This is a coral fossil found in Myloi Gorge, in Rethymno area. I can't identify it, but i know its epoch is Pliocene because in that area were found fish fossils in matrix dated from the Zanclean subepoch( subepoch in Pliocene). Please, can you try to identify it. Thanks.
  5. Is This a Fossil?

    Hey everyone! I was recently fossil hunting at Bolinas in California, which is known for its fossilized sand dollars. While hunting, I found this strange piece and I'm not sure if it's a fossil or not. It's from the Merced Formation, which is from the Late Pliocene to the Pleistocene in California. I have no clue what it is, but I am looking forward to hearing if anyone on the forum does. Thanks!
  6. Concavus concavus (Bronn 1831)

    From the album Other Fauna

    Synonym Balanus concavus Cirripedia (Barnacle) 4x6cm. Zanglean, Early Pliocene From Pikermi, Eastern Attika, Greece From my Secret Santa Dimitris
  7. Chesapecten jeffersonius

    As a graduate of the University of Virginia, I thought it would be cool to add to my collection a fossil named after the founder of the university, Thomas Jefferson. I was disappointed to read that one of the best places to find Chesapecten jeffersonius shells - Chippokes Plantation State Park - no longer allows you to collect the shells there. I had also read that Chesapecten sp. shells can be found at York River State Park, but that Chesapecten jeffersonius unfortunately cannot be found there. Is that true? Are there other sites in Virginia where you can find Chesapecten jeffersonius? With the personal connection to UVA and Thomas Jefferson, I would greatly appreciate any help. Thank you so much!
  8. Fossil fossils

    Hi everybody. I found this Fossil fossils and I don't know anything about can you please let me know what this Fossil fossils . Thank you .
  9. Found this odd 9" long jaw-like fossilized bone in a small creek within the Yorktown formation in Virginia between the York River and I-64. It is atypical of the Baleen Whale and Ice Age mammal bones I have found in the same area. Any help with identifying this specimen would be appreciated.
  10. Pliocene Project Part 2

    Part of the fascination with fossil shells is the excellent preservation which occurs under the proper conditions. With the exception of color, specimens whether shell, coral, or echinoderm, many times look as if they were picked off of a beach. Yet careful examination reveals differences between fossil and recent related species which demonstrate changes within taxa through time. Often overlooked however, are the geological processes which form shell beds. A principle of global geology is transgressive/regressive sea level rise. During warm periods, less water is captured in ice caps and glaciers resulting in a rise of sea level. As oceans encroach upon dry land (transgression) marine environments move accordingly and remains of organisms become deposited within building sediments. The process is not linear but gradual and the remains of these organisms are concentrated through currents and storms in dense accumulations by the process known as winnowing. As water levels continue to rise, the shallow marine zones which contain the most abundant life move according to optimum depth. Sediments continue to accumulate but into zones containing few macro organisms. When global temperatures drop, water is once more captured in ice and a regression of the oceans occur which remove sediment as sea levels retreat sometimes removing fossiliferous zones created during the previous transgression. When the next transgression cycle occurs, shell bed formation can be deposited on top of an older bed resulting in a time gap or unconformity. In Florida, species identification based upon age is particularly difficult where the southern most part of the state is only a few feet above sea level and fossils can only be obtained from quarries in which mining might go through several different beds producing specimens out of spacial context (fig. 1). Figure 1. SMR Aggregates Phase 10 Pit, Sarasota County, Florida. November 2013. During the late Pliocene one such period of warming produced shell beds worldwide which can be correlated as to age on the basis of calcareous nanofossils and magnetostratigraphy. This period is called the Piacenzian stage based upon the incredibly rich shell beds near the Italian city of Piacenza. During this period Italy was no more than a sliver of land with the Adriatic reaching as far west as Turin. In northern Europe the English Channel was much wider as sea levels flooded west to London and eastward over much of the Netherlands and East Flanders. There was not a arctic ice cap and sea otters ranged up to the northern shore of Alaska where their fossilized remains have been found. In the Southern Hemisphere, the high southern shore of Australia was flooded as much of the Nullabor Plain was a shallow sea (fig. 2). Figure 2. Selected Piacenzian Gastropods. From left to right: Aphorrais pespelecani (Linne, 1758) Piacenzian Stage, Valchiavenna, ITALY; Nassa reticosa J.Sowerby, 1815, Red Crag Formation, Walton-on-the-Naze, Essex, UK; Cassis fimbriata Quoy & Gaimard, 1833, Roe Calcaranite, Madura, Western AUSTRALIA; Opalia varicostata anomala (Stearns, 1875), San Diego Formation, San Diego County, California USA. The main regional geological event in North America just prior to the Piacenzian was the final closure of the Central America isthmus which forced warm equatorial waters up the North American eastern seaboard producing a local marine mass extinction. The Atlantic Ocean flooded the Salisbury Embayment covering much if not all of the Delmarva Peninsula, eastern Maryland and Virginia almost to the fall line in northeastern North Carolina. The shell beds formed here are referred to as Zone 2 Yorktown Formation. Further south the Western Atlantic extended from a line west of Robeson, North Carolina; Florence, South Carolina; the Okefenokee Basin in Georgia and Jacksonville, Florida. A secession of beds were laid down in this area during the Piacenzian, the best known being the Duplin Formation. The northern Gulf of Mexico reached almost to the Georgia state line depositing the Jackson Bluff formation while in the flooded Everglades Basin, the Tamiami Formation was formed. All of these beds can be correlated to each other based upon the mollusk taxa that they share (fig. 3). Figure 3. Some Piacenzian index fossils of the class Gastropoda found within the Southeastern United States. From left to right: Pterorytis umbrifer (Conrad, 1832), Moore House Member of the Yorktown Formation, Chucatuck, Isle of Wight County, Virginia; Sconsia hodgii (Conrad, 1841), Duplin Formation, Bladen County, North Carolina; Ecphora quadricostata (Say, 1824), Jackson Bluff Formation, Alum Bluff, Liberty County, Florida; Fasciolaria rhomboidea Rogers, 1839, Pinecrest Member of the Tamiami Formation, SMR Phase 10, Sarasota County, Florida. This post represents an update to my Pliocene Project which I began in early 2012 resulting in a species list in 2013 of my Upper Pliocene collection organized and cross-referenced according to species found across the southeastern United States. Between that initial compilation and this one, however, I found that the methodology in which I performed identification was flawed. It is easy enough identify species one location at a time and to organize a collection by horizon, however when I began looking at those identifications side by side I found that there were errors. To rectify the discrepancies I reorganized my collection taxonomically as opposed to stratigraphically. Although this led to a great deal of invested time, the deep dive into taxonomy using descriptions within the original references has improved the accuracy and the confidence that have with the phylum mollusca, which I like to refer to as the “insects of the sea” based upon their numerical diversity. The expansion of the Piacenzian species list below includes the additions from my collecting efforts in the Tamiami Formation in 2013 and from the Chowan River Formation in 2014. A few corals, mollusks, and vertebrates were added to the list from the Pinecrest however the list was significantly increased with mollusks from the Chowan River Formation which introduced a number of Lower Pleistocene mollusks which first appeared towards the end of the Pliocene. Piacenzian species list 020115.pdf My plan is to periodically update the list as I will continue to collect within the Piacenzian particularly at SMR prior to its closure. Also on tap for 2015 is a concerted effort to investigate Duplin deposits in the Carolinas which contain many endemic species and is represented in my collection from only two localities. Although I have previously listed many of the references below these are the ones that I have used the most for species identification. The website for the World Register of Marine Species (WoRMS) has been particularly useful for providing the most updated names of mollusk genera. REFERENCES Bouchet, P., Yu. I. Kantor, A.Sysoev and N. Puillandre. 2011. New Operational Classification of the Conoidea (Gastropoda). Journal of Molluscan Studies (2011) 77: 273–308. Campbell, Lyle. 1975. Check List of Marine Pliocene Mollusks of Eastern North America in Plio-Pleistocene Faunas of the Central Carolina Coastal Plain. Geologic Notes (South Carolina Division of Geology) Vol. 19, No. 3. Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127. Dall W.H. 1890-1903. Contributions to the Tertiary Fauna of Florida, with Especial Reference to the Miocene Silex-Beds of Tampa and the Pliocene Beds of the Caloosahatchie River, Part I: Pulmonate, Opisthobranchiate and Orthodont Gastropods, Transactions of the Wagner Free Institute of Science of Philadelphia 3(1-VI). Gardner, J. A. 1944. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina: Part 1. Pelecypoda, United States Geological Survey Professional Paper 199-A: iv, pages 1-178, plates 1-23 Gardner, J. A. 1948. Mollusca from the Miocene and Lower Pliocene of Virginia and North Carolina: Part 2. Scaphopoda and Gastropoda, United States Geological Survey Professional Paper 199-B: iv, pages 179-310, plates 24-38, [iii] Gardner, J. A. and T.H. Aldrich. 1919. Mollusca from the Upper Miocene of South Carolina: with Descriptions of New Species. Proceedings of the Academy of Natural Sciences of Philadelphia 71: pages 17-53. Gibson, Thomas G. 1987. Miocene and Pliocene Pectinidae (Bivalvia) from the Lee Creek Mine and Adjacent Areas in Geology and Paleontology of the Lee Creek Mine, North Carolina, II. Smithsonian Contributions to Paleobiology No. 61. Hendricks, Jonathan. 2008. The genus Conus (Mollusca: Neogastropoda) in the Plio-Pleistocene of the southeastern United States, Bulletins of American Paleontology 375. Hulbert, Richard C. (ed.). 2001. The Fossils Vertebrates of Florida. University Press of Florida. Mansfield, W.C. 1930. Miocene Gastropods and Scaphopods of the Choctawhatchee Formation of Florida, Florida Geological Survey Bulletin 3, 189 pages. Mansfield, W.C. 1931. Some tertiary mollusks from southern Florida. Proceedings of the United States National Museum, v. 79. Mansfield, W.C. 1931. Pliocene Fossils from Limestone in Southern Florida in Shorter Contributions to General Geology, USGS Professional Paper 170, 11 pages. Mansfield, W.C. 1932. Miocene Pelecypods of the Choctawhatchee Formation of Florida, Florida Geological Survey Bulletin 8, 233 pages. Mansfield, W.C. 1936. Stratigraphic Significance of Miocene, Pliocene, and Pleistocene Pectinidae in the Southeastern United States, Journal of Paleontology, Vol 10, No. 3, 24 pages. Mansfield, W.C. 1939. Notes on the Upper Tertiary and Pleistocene Mollusks of Peninsular Florida, Florida Geological Survey Bulletin 18, 128 pages. Hollister, S.C. 1971. New Vasum Species of the Subgenus Hystrivasum. Bulletins of American Paleontology 262. Olsson, A.A. 1967 (1993 Reprint). Some Tertiary Mollusks from South Florida and the Caribbean, Originally - Bulletins of American Paleontology 54(242), The Paleontological Research Institute Special Publication 19: pages 11-75, 9 plates Olsson, A.A., and A. Harbison. 1953 (1990 Reprint). Pliocene Mollusca of Southern Florida with Special Reference to Those from North Saint Petersburg, with special chapters on Turridae by W.G. Fargo and Vitinellidae and Fresh-water Mollusks by H.A. Pilsbry, The Academy of Natural Sciences of Philadelphia Monographs 8, The Shell Museum and Educational Foundation, 457 pages, 65 plates Olsson, A.A., and R.E. Petit. 1964. Some Neogene Mollusca from Florida and the Carolinas, Bulletins of American Paleontology 47(217): pages 509-574, plates 77-83 Olsson, A.A., and R.E. Petit. 1968 (1993 Reprint). Notes on Siphocypraea, Originally - Special Publication 9, The Paleontological Research Institute Special Publication 19: pages 77-88. Petuch, Edward J. 1994. Atlas of Florida Fossil Shells (Pliocene and Pleistocene Marine Gastropods). Chicago Spectrum Press. Portell, Roger W. and Craig W. Oyen. June 2002. Pliocene and Pleistocene Echinoids. Florida Fossil Invertebrates Part 3, 30pp. Portell, Roger W. and Jeffery G. Agnew. February 2004. Pliocene and Pleistocene Decapod Crustaceans. Florida Fossil Invertebrates Part 4, 29 pp. Portell, Roger W. November 2004. Eocene, Oligocene and Miocene Decapod Crustaceans. Florida Fossil Invertebrates Part 4, 29 pp. Rathbun, Mary J. 1935. Fossil Crustacea of the Atlantic and Gulf coastal plain. Geological Society of America. Special papers; no. 2. Tucker, H.I. and Druid Wilson. 1932. Some new or otherwise interesting fossils from the Florida Tertiary. Bulletins of American paleontology; v. 18: no. 65. Tucker, H.I. and Druid Wilson. 1933. A second contribution to the Neogene paleontology of South Florida. Bulletins of American paleontology; v. 18: no. 66. Tuomey, M., and F.S. Holmes. 1855-1856 (1974 Reprint). Pleiocene Fossils of South-Carolina: Containing Descriptions and Figures of the Polyparia, Echinodermata and Mollusca, Original pages 1-30 and plates 1-12 published in 1855, Original pages 31-152 and plates 13-30 published in 1856, The Paleontological Research Institution Special Publication 12: xvi, 152 pages, 30 plates, [addendum] Turgeon, D.D. et al. 1998. Common and scientific names of aquatic invertebrates from the United States and Canada: mollusks. Second edition. American Fisheries Society Special Publication. No. 26. 526 pp. Waller, T.R. 1969. The evolution of the Argopecten gibbus stock (Mollusca: Bivalvia), with emphasis on the Tertiary and Quaternary species of eastern North America. Journal of Paleontology, Memoir 3 (vol. 43, suppl. to No. 5). Ward L.W. and Blackwelder, B.W. 1975. Chesapecten, a New “Genus of Pectinidae (Mollusca: Bivalvia) from the Miocene and Pliocene of Eastern North America. USGS Professional Paper 861. Ward, L. W., and Gilinsky, N. L. 1993. Molluscan assemblage of the Chowan River Formation, Part A. Biostratigraphic analysis of the Chowan River Formation (Upper Pliocene) and adjoining units, the Moore House Member of the Yorktown Formation (upper Pliocene) and the James City Formation (Lower Pleistocene): Virginia Museum of Natural History Memoir 3, part A., 33 p. Williams, Margaret. 2006. Shallow-Water Turridae of Florida and the Caribbean. Self published. Weisbord, Norman E. 1966. Some late Cenozoic cirripeds from Venezuela and Florida. Bull. Amer. Paleont., vol. 50, no. 225, pp. 1-145, pls. 1-12. Weisbord, Norman E. 1974. Late Cenozoic Corals of South Florida. Bulletins of American Paleontology vol. 66, no. 285. 544 pp. Zullo, Victor A., 1992. Revision of the balanid barnacle genus Concavus Newman. Supplement to Journal of Paleontology, v. 66, no. 6, pt. II. Zullo, Victor A. and Portell, Roger W. 1993. Paleobiogeography of the Late Cenozoic Barnacle Fauna of Florida in The Neogene of Florida and Adjacent Regions, Florida Geological Survey Special Publication No. 37. WEBSITES The Bailey-Matthews National Shell Museum Southwest Florida Shells http://shellmuseum.o.../shellindex.cfm Florida Museum of Natural History Invertebrate Paleontology Database http://www.flmnh.ufl.edu/invertpaleo/search.asp Florida Museum of Natural History Invertebrate Paleontology Image Gallery http://www.flmnh.ufl.edu/invertpaleo/galleries.htm Fossilworks, Gateway to the paleobiology Database http://fossilworks.org/ Gastropoda Stromboidea http://www.stromboidea.de/?n=Main.HomePage Greta L. Polites Worldwide Fossil Muricidae Collection http://glpolites.us/murex/index.htm International Fossil Shell Museum http://www.fossilshells.nl/ Let’s Talk Seashells http://www.letstalkseashells.com/ Natural History Museum Rotterdam Mollusks Database http://www.nmr-pics.nl/ The Neogene Atlas of Ancient Life Southeastern United States http://neogeneatlas.org/ Olividae and Olivellidae Lifedesk – Mollusca http://olivirv.lifedesks.org/ The World Register of Marine Species (WoRMS) http://www.marinespecies.org/index.php
  11. Rock ...or Bulla

    Chances to get out hunting have disappeared. A lot of rain with Hurricane Theta and then some tropical storms. There is a lot of activity late in the season which means higher faster water in rivers and creeks. So I look back on recent curiosities. Hunting 10 days ago, I pick up a curious rock that seemed to have texture, broken at one end. It was white inside. At a distance of 10 feet and 2 hours digging, I found the smaller end. That might be a shovel mark, and for a second I thought I might have broken it, but 10 feet apart, no way. I really do not like breaking fossils. . Now it looks like a water worn whale bulla with a rock boring mollusk hole at one end. But what about that white inside? What is it? How did it form? A couple of more photos... So, we might say that the white was sand (silica) that filled the bulla, and underwent a "transformation". Note that in the last photo , the white seems to merge with the fossilized bone... Curiouser and curiouser... I certainly look for insight from those who have seen this previously.
  12. heres a link to a newly described fossil seal that we have been finding bones and skulls of here in taranaki, new zealand for the last 15 or so years. https://www.google.com/search?client=opera&hs=0U9&biw=1496&bih=754&tbm=nws&sxsrf=ALeKk01vc72KwYUUtagYwhLgRk96jWpnXQ%3A1605241533476&ei=vQquX5veHM7w9QPNhoLgBQ&q=new+zealand+fossil+seal&oq=new+zealand+fossil+seal&gs_l=psy-ab.3...33364.36178.0.37013.
  13. Fossil Tooth

    Hi. I was at Ramsholt Cliffs in Suffolk, Uk today and found this strange looking tooth. It’s a very large incisor and looks too big to be from a modern human. Could it be an ape of some sort? The rock formations are London Clay, red crag and coralline crag, on the river shoreline a few miles inland from the Suffolk coast. It is a well known treasure trove for fossils. I also found various sharks teeth, also exciting but this tooth is very interesting! Any help or ideas as to what it is from would be great.
  14. Is this a real mammoth tooth?

    Hi all, Someone offered me to sell his what he called to be a baby mammoth tooth. I have been looking around but I am a bit suspicious about the root. I would appreciate if you would kindly put some expertise on it before I buy it. Unfortunately the origin is not known, but it is probably found by fisherman in the North Sea. Thanks for helping me out! Ronny
  15. Sinistrofulgur contrarium

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Sinistrofulgur contrarium (Conrad, 1840) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 8 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Differences in the spire and sculpture of the fossil species separates it from recent Sinistrofulgur sinistrum.
  16. Busycoarctum tropicalis

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Busycoarctum tropicalis (Petuch, 1994) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Sub adults of this species have been identified as Busycoarctum rapum while adults resemble Busycoarctum maximum. Heilprin (1886) in his description of B. rapum stated that it is a smooth shell lacking shoulder spines. B. tropicalis is more heavily striated with shoulder spines suggesting a different species.
  17. Busycotypus bicoronatum

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Busycotypus bicoronatum (Tripp, 1988) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Quality Aggregates Quarry, Sarasota County, Florida USA. Status: Extinct Notes: Although similar in appearance to B spiratum, B bicoronatum is closer to the recent Channeled Whelk, Busycotypus canaliculatus but less inflated.
  18. Busycotypus spiratus

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Busycotypus spiratus (Lamarck, 1816) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extant Notes: The pear whelk is a common component of the molluscan fauna on both Florida coasts.
  19. Laeviscyon planulatum

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Laeviscyon planulatum (Dall, 1890) Stratigraphy: Bed 4 Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Almost identical to L. laevis but lacking a subsutural sulcus. Since both L. planulatum and L laevis are found in the same unit, the sulculus could be variation thus making L. laevis a synonym to L. planulatum.
  20. Laeviscyon laevis

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Laeviscyon laevis (Petuch, 1982) Stratigraphy: Bed 4 Tamiami Formation Location: APAC Quarry, Sarasota County, Florida USA. Status: Extinct Notes: Less inflated than L. demistriatum with a deep narrow subsutural sulcus. Mostly smooth with faint spirals
  21. Laeviscyon demistriatum

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Laeviscyon demistriatum (Petuch, 1982) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Inflated final whorl with subsutural sulcus. Mostly smooth with faint spirals
  22. Pyruella schmidti

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Pyruella schmidti Petuch, 1994 Statigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Large distinctive widely spaced spirals. Noticeable subsutural sulcus.
  23. Pyruella fredericoae

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Pyruella fredericoae Petuch, 1994 Statigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Similar to P. sarasotaensis but with a sloping final whorl.
  24. Pyruella sarasotaensis

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Pyruella sarasotaensis Petuch, 1982 Statigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Quality Aggregates Quarry, Sarasota County, Florida USA. Status: Extinct Notes: Shape edged final whorl with a deep subsuture sulculs.
  25. Pyruella rugosicostata

    From the album Gastropods of the Tamiami Formation

    Order Neogastropoda Family Buccinidae Pyruella rugosicostata Petuch, 1982 Statigraphy: Pinecrest Sand Member of the Tamiami Formation Location: APAC Quarry, Sarasota County, Florida USA. Status: Extinct Notes: A rare species from the lower beds of the Pinecrest. Low spire with a sharp edged lower whorl.