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Showing results for tags 'pliocene'.
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Totally fascinated by these little guys!
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Lit.: Knobloch, Ervin (1998): Der pliozäne Laubwald von Willershausen am Harz (Mitteleuropa) München. Documenta Naturae. 1998. 302 S. : Ill. Documenta naturae 120.
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References: Knobloch, Ervin (1998): Der pliozäne Laubwald von Willershausen am Harz (Mitteleuropa) München. Documenta Naturae. 1998. 302 S. : Ill. Documenta naturae 120.
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Can't find any similar pictures, too big to be Brachiopods,
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Might be Trachurus trachurus Linnaeus. 1758 Picture of Atlantik horse mackerel taken from Wikipedia, own work of Kare Kare References: SORBINI, Lorenzo (1987) BIOGEOGRAPHY AND CLIMATOLOGY OF PLIOCENE AND MESSINIAN FOSSIL FISH OF EASTERN-CENTRAL ITALY. Boll. Mus. Civ. St. Nat. Verona", 14, pp. 1-85
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Taxonomy from Přikryl et al. 2016. Genus Diagnosis from Přikryl et al. 2016 (emended after D’Ancona and Cavinato 1965; Houde 1984; Endo 2002; Nelson 2006): "Elongate fish with abdomen shorter than caudal part of body. Nuchal ray present, articulated at posterior part of skull roof. Dorsal and anal fins both subdivided into anterior, middle and posterior sections. Outer rays of pelvic fins elongate. Postcleithrum single, with posteriorly enlarged lamina. Only one palatoquadratal element (ectopterygoid) developed between palatine and quadrate. Vomer toothed. Caudal fin supported by fused hypural plate. Accessory bones X and Y present. Scales cycloid with free termination of circuli at posterior edge of scale. Sagittal otolith large relative to body size." Species Diagnosis from Přikryl et al. 2016, p. 17: "Bregmaceros species with 10–12 abdominal vertebrae and 36–38 caudal vertebrae. Orbit relatively larger than in B. filamentosus (i.e. orbit length about 1.5 times or greater than the preorbital length). Dorsal fin with 18–19 + 9 + 16–18 rays. Anal fin with 17–19 + 7–8 + 19–21 rays." Composite reconstruction of Bregmatoceros albyi in left lateral view from Přikryl et al. 2016, p. 29: References: Přikryl , T., Brzobohatý, R. & Gregorová, R. (2016): Diversity and distribution of fossil codlets (Teleostei, Gadiformes, Bregmacerotidae): review and commentary. Palaeobio Palaeoenv (2016) 96:13–39 DOI 10.1007/s12549-015-0222-z
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Hi colleagues and friends, I have been findind and often collecting tose eye catching elongated fossil corals on the Hispaniola island, like "Pirouline's rolled wafers". They have a cavity inside on mostly case and have up to 3 inches diameter I guess. As I'm not very familiar with these coral fossils, can you please help me to ID these fossilized corals and comment anything about the environment, ages, behaviors, occurrence, distribution, etc. Thanks a lot for youn kindly help colleagues!
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Taxonomy from GBIF.org. Diagnosis by Špinar 1980, p. 5 (translated from German by oilshale): "Medium to large frog (see Table 5). The species is characterized by following characteristics: 1. small skull in the shape of a Gothic arch. Its length is not quite 1/5 of the body length (in the species Rana temporaria almost 1/4 of the body length). 2. ossa fronto-parietalia orocaudally elongated with concurrent edges on thesurface of bone; mutually trough-shaped incurved and caudally broadened. 3. pars medialis ossis nasalis broad, irregularly triangular, process laterahs of same bone long. 4. maxilla toothed up to 2/3 of its length. 5. maxillary arch complete; processus frontalis of maxillary short, broad, truncated; lateral process not reaching nasal. 6. quadratojugals long. 7. Vertebral column long, consisting of 9 long, mostly procoelous vertebrae. Ribs absent. They are fused with processus transversi. 8. processus transversus of 3rd vertebra most directed laterocaudally. 9. processus transversus of sacral vertebra cylindrical, narrow, forming an angle of 35-42° with transverse plane. 10. urostylus conspicuously narrow, long, rod-shaped, with 2 articular pits on the proximal end. 11. shoulder girdle firmistern. 12. cleithrum well ossified, broad; margo scapularis and margo caudalis forming an angle of about 31 -32°. 13. scapula broad, strong, even broader to margo cleithralis. 14. ilium with low, bean-shaped tuber superius, as well as low, long crest (crista ossis ischii). 15. femur shorter than os cruris. Total length of both bones less than length of body - measured from oral end of intermaxillare to the caudal end of the ischium. 16. calcaneus bent through on the tibial side. 17. webbing between toes of hind foot well developed. In the 4th toe it extends to middle of 3rd phalanx. 18. hind limbs conspicuously dark striped." Identified by oilshale. References: Špinar, Z. V. (1980): Fossile Raniden aus dem oberen Pliozän von Willershausen (Niedersachsen). Stuttgarter Beiträge zur Naturkunde / Ser. B, Nr. 53, pp. 1-53, 9 Taf., 25 Abb., 8 Tab.
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After checking our trusty fossil hunting forecast app for Friday, Kyle (@addicted2fossils) and myself decided the conditions were sounding way too promising not to give it a shot and go fossil hunting for the day. Unfortunately, the forecast was incorrect as they so often are. Kyle did manage to get one small great white and I snagged a broken one, but the whale skeleton was nowhere to be found. After a few hours of digging through the creek, we decided we needed to come up with a new plan very quickly if we didn't want the day to be a bust. We decided to take a drive to a location I walked a long time ago where I found a lot of well preserved invertebrates and some whale bone in brought in fill material. When we finally arrived at the location, we saw brand new material all over the site and quickly began finding beautifully preserved invertebrates. Now, because this material has been brought in from another location, we're having a hard time figuring out which formation it comes from and we're hoping somebody can help us....also, both of us are better with vertebrate fossils than we are with invertebrates, so we don't have IDs on the vast majority of these fossils...any help would be appreciated in narrowing down identifications and/or at figuring out which formation this may be. The fill material was in Northeast FL. Also, my camera stopped working and I had to use a backup, so these photos are terrible. I can take additional photos of anything if needed. Photo #1: A photo just showing most of my finds from the two hours or so of daylight that we had at this location. Photo #2: Photo #3: Photo #4: Photo #5: Photo #6: Photo #7: This appears to be a sinistral Conus, so maybe Conus adversarius? Photo #8: Photo #9: Another sinistral one that I don't have an ID on....Check out all the micros inside of it. Photo #10: This one seems to be a little less common than most of the others we found. Photo #11: Photo #12: A bunch of Conus that I don't have an ID on. Different species from the large sinistral one. Photo #13: Photo #14: Photo #15: Photo #16: Photo #17: Photo #18: And finally, a couple of the vertebrate fossils found with all of the inverts. Here are some of Kyle's finds: Photo #19: Photo #20: Photo #21: Photo #22: We'd really like to figure out what formation this is, how old it is and all of that. Definitely have to tag @MikeR in this one and see if he can give any insight. Kyle took quite a few in situ photos....Maybe he'll share those in this thread when he drops in. -Cris
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- florida
- gastropods
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The Sunday of the weekend before Hurricane Mathew came a calling, a friend and I decided to spend the day fishing on the Neuse River in eastern North Carolina. WE had a pretty good day fishing, caught lots of small puppy drum and stripers. No keepers but fun to catch. About halfway through the day we left the creek we were in and headed back into the main river. Heading from the Cherry Point area heading over towards New Bern. A mile or so up we saw fish busting all over the surface on the Flanners Beach side of the river but not quite that far. We motored towards them and for an hour or so caught stripers on almost every cast. As we were leaving we noticed there was a small cliff eroding out and decided to check it out. We beached and found small gravel on the beach in a strip about 40 or so yards in front of the eroding cliff face. Now, I have been on this river my whole life, but have never noticed this area before. We started finding bivalves almost immediately. We also found some small worn shark teeth, a nice burfish mouth plate and some possible small bone material. I am trying to pinpoint down the age of this exposure. There is Pleistocene Flanner Beach Formation and James City Formation nearby. James City is earlier. There are also Pliocene deposits. Possibly Yorktown, Chowan River or Duplin. The reason I am adding all of these is because of the bivalve ID's if I have them right. So any help is much appreciated. Please correct any incorrect ID I have as I am still learning how to properly ID Molluscs. The first is a bivalve that according to my reference is known from the Pliocene Duplin Formation; Glycymeris subovata Next an oyster Myrakeena sculpturata, from the Chowan River Formation (Pliocene) by my reference.
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Hi forum, i'm Davide, i'm 17 years old. I'm italian, more precisely i came from Tuscany. When i use to go out with my metal detecting, i often have found a lot of fossil "shells" . as you will have understood i'm a archaeology amateur, appassionate of every object that have got a history . Thus, i want to share some of them, specially for ID's and discover the interesting world of paleontology. It's time to learn something about this beautiful and, imho, underestimated science. If you are asking about my nickname,i't because i love David Bowie, the singer! I'm happy for being registered to this, i hope, fantastic family.
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Niveria floridana was named by Olsson & Harbinson (1953). Although I did see someone synonymize this with the recent Niveria suffusa they did so without an explanation. N. floridana can be differentiated from N. suffusa by lacking the nodose ribs of the extant species. Reference 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
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Olsson & Petit (1964) described Trigonostoma carolinense as very similar to the modern Trigonostoma tererum however differing in being a much heavier shell and larger than the extant species. The ornamentation is quite different from T. elizbethae (LINK) as T. carolinese has 4-5 cords none which are as heavy as the two cords in T. elizbethae. I have seen this shell described in various publications as T. tenerum and T. tenerum carolinense. I have chosen the designation in O&P due to my respect of their work. Of note is that I have classified T. carolinense in only Upper Pliocene deposits; Tamiami, Duplin and Yorktown. I have designated similar shells in the Pleistocene (Bermont and Caloosahatchee) as T. tenerum. Reference 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
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Ciao forum, as i promise yesterday, i post three images of the fossil shell i found in Pisa( tuscany) next to a clay spot. could you possibly identify the specimen, please? Thanks in advance. I will appreciate all your answer. ps: i want to do a info schedule of all my finds and learn, learn, learn!
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Reference Mansfield, W.C. 1930. Miocene Gastropods and Scaphopods of the Choctawhatchee Formation of Florida, Florida Geological Survey Bulletin 3, 189 pages.
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Reference Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127.
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Varix ornamentation can vary significantly based upon environmental conditions. Compare this specimen from a fine grained sheltered habitat to that of MR 10239-1028 which lived in a high energy environment. Reference Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127.
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Mansfield (1930) described the Jackson Bluff (Chocatawahatchee) Formation species as Ecphora qudricostata umbilicata. Campbell (1993) and Lauck Ward (personal communication) agree that all named species and subspecies of Ecphora from the Upper Pliocene are variations of a single species E. quadricostata. Both consider Ecphora bradleyae Petuch, 1986 as the only other valid Upper Pliocene Ecphora. Reference Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127. Mansfield, W.C. 1930. Miocene Gastropods and Scaphopods of the Choctawhatchee Formation of Florida, Florida Geological Survey Bulletin 3, 189 pages.
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The seahorses from Fiume Marecchia were determined by L. Sorbini as Hippocampus ramulosus Leach, 1814, a recent species. H. ramulosus is according to the World Register of Marine Species (WoRMS) a synonym of H. guttulatus Cuvier, 1829. References: SORBINI, Lorenzo (1987) BIOGEOGRAPHY AND CLIMATOLOGY OF PLIOCENE AND MESSINIAN FOSSIL FISH OF EASTERN-CENTRAL ITALY. Boll. Mus. Civ. St. Nat. Verona", 14, pp. 1-85
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- fiume marecchia
- hippocampus
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References Gregor, H. & Knobloch, E. (2000) Ergaenzungen zur Flora von Willershausen am Harz. Documenta Naturae, 132, pp 27-35 Knobloch, Ervin (1998): Der pliozäne Laubwald von Willershausen am Harz (Mitteleuropa) München. Documenta Naturae. 1998. 302 S. : Ill.. Documenta naturae 120.
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Collection site on the Great PeeDee River. Described by early authors as Duplin Formation but is more likely Raysor based upon description of the formation in Campbell, M.R., and Campbell, L.D., 1995, Preliminary biostratigraphy and molluscan fauna of the Goose Creek Limestone of eastern South Carolina: Tulane Studies in Geology and Paleontology, v. 27, nos. 1-4, p. 53-100.
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In 12/2015 (see thread for Bradenton Beach fossils) I found what I believe is a Cancellaria conradiana with an operculum. Search has not shown any in fact some material indicates that adult cancellaria do not have operculums. I found 2 Nautica plicatella and a fasciolaria with operculums in this group of shells. I have seen the Nautica on sale with operculums but not the tulip. But I have seen live ones with. Is this usual for the Pinetree? Any help would be appreciated.
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On a business trip to Tampa this week, I came across a shell pile containing typical Upper Pliocene fossil mollusks which probably originated from SMR. Since SMR is no longer in production it might be a good opportunity for someone to start a nice little collection if you never had the opportunity to collect in the Sarasota quarries. Since it is slated for road fill it won't be there long so if you are interested PM me and I will give you locality details. Mike
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- florida
- fossil shells
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Typically I would not photograph an imperfect specimen however this is a species that neither Campbell or Ward and Gilinsky list from the Chowan River Formation. References Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127. 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.
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- chowan river formation
- edenhouse member
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Reference Campbell, Lyle. 1993. Pliocene Molluscs from the Yorktown and Chowan River Formations in Virginia. Virginia Division of Mineral Resources Publication 127.
