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Showing results for tags 'pliocene'.
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These pectens are very common in the Rushmere Member of the Yorktown Formation in cuts and bluffs along certain portions of the Tar River in North Carolina. Many are extremely worn and even crumble to pieces when handles. Specimens with double valves are not uncommon. This specimen is in exceptional shape. The final picture of the 3 specimens is to illustrate the growth of the species. They are all double valves, and range from 1 /4 inch long to 5 5/8 inch long.
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A nice upper shark tooth from the six-gill cow shark, from Chile. Possibly from a male. One cusp is missing (far right in first photo).
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This clam is a common find in the Yorktown Formation bluff banks of the Tar River. It is often found in association with Echphora's. Many of these clams are "double valvers" but often break upon handling.
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I have another smaller piece of this black (coral?) with this vivid yellow in it, and it also has those yellow dots around the edge. This specimen has those interesting whorls in the yellow that remind me of beetle wings for some reason. Ideas?
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Self collected from a bluff along the Tar River upstream of Tarboro N.C. This is a fairly common oyster in this deposit, but most are extremely brittle and crumble upon touching. Still looking for my first complete (double valve) specimen.
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Here are 3 bizarre agates in my collection, all from the same small creek bed where I regularly find Paleozoic fossils and lovely druzy chunks of agate. These 3 are atypical finds, and I'm wondering if anyone can shed some light as to what type of agates they are, or provide me with the proper descriptive words to be able to learn more about them. I'm also VERY curious as to how these are formed, as the two agates without the quartz seem to bloom in an outwards fashion; all of my other agates appear to all come from geodes. Anything would be helpful, really, I've tried to research them myself and come away with more questions than answers. I think I'd have more luck if I knew the proper way to describe them in a search query. Thanks~caroline The second pic is of the backside of these agates.
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My boyfriend and I finally made our first trip to the Peace River two weeks ago. We were lucky enough to spend the whole week on the river with varying levels of success. We did find a few smaller megs and fraglodons. We need help identifying many of the items we are unsure of. There are LOTS of pictures headed to the ID forum so please help if you can! Pic files are big so I can only upload one at a time. We flew so I had to leave another probably 20lbs of other huge bone fragments, dugong ribs etc with a friend who lives in the area. I won't get them until they drive up here in July. Thanks EDIT: I'll use my new Moderator powers to edit your posts adding item numbers to your finds so they may be more easily referred to later on in the discussion below. -Ken Item #1
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Can anyone ID the actual animal these bones came from with these pictures?
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Hi, I would like to show you some specimens of Pliocene molluscs (Italy) from my collection:
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From the album: The marine fossils malacofauna (Pliocene)
© Paololitico
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Circomphalus foliaceolamellosus is a species of saltwater clam, a marine bivalve mollusc in the family Veneridae, the venus clams.. The genus Circomphalus is known from the Miocene to the Recent periods (age range: from 15.97 to 0.0 million years ago). La formazione, per uno spessore di 100-120 m, è costituita da sabbie giallastre incoerenti o localmente cementate in genere omogenee, talora mostranti strutture da moto ondoso. La successione sabbiosa dell'Astigiano, soprattutto per le ricche associazioni fossili, fu indicata da De Rouville nel 1853 come tipo per l'istituzione del "Piano Astiano". Un tempo utilizzato con significato cronologico (Sacco, 1889-90), l’Astiano nell’accezione sostitutiva "facies astiana" permane nella letteratura relativa al Pliocene sudeuropeo con riferimento a sedimenti sabbiosi deposti in ambienti marini superficiali (piano infralitorale). Le Sabbie di Asti sono note in campo internazionale per l'elevato contenuto paleontologico con fossili talora concentrati in livelli di spessore discreto. Siffatta notorietà ha portato la Regione Piemonte a istituire, nel 1985, la Riserva Naturale Speciale di Valle Andona e Valle Botto finalizzata alla geoconservazione (tutela e fruizione) del patrimonio paleontologico e attualmente gestita dall’Ente Parchi e Riserve Astigiani. Il contenuto paleontologico del tratto inferiore e medio delle Sabbie di Asti è ben documentato nella classica sezione del Castello di Valleandona, citata in letteratura come sezione-tipo per le Sabbie di Asti. Vi si possono riconoscere due livelli fossiliferi. Quello superiore, caratterizzato dalla frequenza del bivalve Isognomon maxillatus, si estende su buona parte del territorio astigiano con caratteristiche simili. Lo strato fossilifero inferiore, dominato dal bivalve Glycymeris insubrica, è sviluppato nelle valli Andona e Monale. Tali paleocomunità a molluschi, in parallelo con altre associazioni fossili, si riferiscono ad altrettanti biotopi che documentano l'evoluzione fisiografica e la progressiva riduzione di profondità del mare pliocenico astigiano, sino all'emersione villafranchiana.
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From the album: The marine fossils malacofauna (Pliocene)
© @Paololitico
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so I found a lot of cool things I just want to know what you guys think? Can you confirm what this stuff is? And maybe how old it is? You guys inspire me to keep looking!
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From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeNaticarius castrenoides (Woodring, 1928)Location: Quality Aggregates (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Not as inflated as N. plicatella and the radial lines from the suture not as profound. Common within Caribbean Pliocene faunas. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeNaticarius cf. canrena (Linnaeus, 1758)Location: Quality Aggregates (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtantNotes: This immature and crabbed shell is most similar to the Colorful or Gaudy Moon Snail. Compare to recent N. canrena. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaePolinices caroliniana (Conrad, 1841)Location: APAC (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Glossy shell higher than wide with an open and distinctive umbilicus. Also found the Duplin Formation. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeStigmaulax guppiana (Toula, 1909)Location: Quality Aggregates (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Distinct lines radiating from the suture to the umbilicus. A wide-spread species found in the Pliocene of the Caribbean and Central America. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeStigmaulax polypum Olsson & Harbinson, 1953)Location: SMR Phase 10 (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Smaller and taller than S. guppiana. Faint lines radiating from the suture. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeSigatica bathyora (Woodring, 1928)Location: APAC (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Distinctively shaped rare shell with large uncovered umbilicus. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeDallitesta coensis (Dall, 1903)Location: Quality Aggregates (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Taller than wide. Well preserved shells are glossy with a partially covered umbilicus. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeEuspra perspectiva (Rogers & Rogers, 1837)Location: Immokalee (Golden Gate Member), Collier County, Florida USA. Status: ExtinctNotes: Small shell, relatively high naticid with partially covered umbilicus. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeNeverita duplicata (Say, 1822)Location: SMR Phase 10 (Pinecrest Member), Sarasota County, Florida USA. Status: ExtantNotes: Aka Common Atlantic Shark Eye. Compare to recent N. duplicate. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeTectonatica pusilla (Say, 1822)Location: SMR Phase 8 (Pinecrest Sand Member), Sarasota County, Florida USA. Status: ExtinctNotes: Tiny shell with covered umbilicus. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeSinum perspectivum (Say, 1831)Location: SMR Phase 10 (Pinecrest Member), Sarasota County, Florida USA. Status: ExtantNotes: Aka Common Baby Ear. Compare to modern examples of S. perspectivum. -
From the album: Gastropods of the Tamiami Formation
Order LittorinimorphaFamily NaticidaeSinum polandi (M. Smith, 1936)Location: SMR Phase 10 (Pinecrest Member), Sarasota County, Florida USA. Status: ExtinctNotes: Similar to Sinum perspectivum but taller and more inflated.
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