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  1. MikeR

    Siphocypraea carolinesis floridana

    From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Cypraeidae Siphocypraea carolinesis floridana (Mansfield, 1931) Statigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10, Sarasota County, Florida USA. Status: Extinct Notes: Highly variable much more so than S. carolinensis. The dorsum tends to be not as high as S. carolinensis and parietal denticles are more strongly expressed but shares the uncoiled anterior sulcus and wide posterior aperture. This is the common Siphocypraea found in the Sarasota shell pits. Also, Akleistostoma.
  2. MikeR

    Turritella cf. T. altilira

    From the album: Gastropods of the Tamiami Formation

    Order [unassigned] Caenogastropoda Family Turritellidae Turritella cf. T. altilira Conrad, 1857 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: APAC Quarry, Sarasota County, Florida USA. Status: Extinct Notes: T. altilira altilira from the Miocene of Central America is strongly bicarinate while the shell found in the Tamiami is much less so, The Tamiami species is very similar to several different subspecies of T. altilira scattered through the Caribbean.
  3. MikeR

    Cyclostremiscus trilix

    From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Tornidae Cyclostremiscus trilix (Bush, 1883) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Housing construction, Manatee County, Florida USA. Status: Extinct Notes: A rare shell often overlooked because of its small size with a distinctly striated umbilicus.
  4. MikeR

    Melanella suavis

    From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Eulima Melanella suavis Olsson & Harbinson, 1953 Stratigraphy: Golden Gate Member of the Tamiami Formation Location: Boca Grande Quarry, Lee County, Florida USA. Status: Extinct Notes: A small species that is stout compared to other species within the genus.
  5. MikeR

    Ochetoclava stena

    From the album: Gastropods of the Tamiami Formation

    Order [unassigned] Caenogastropoda Family Cerithiidae Ochetoclava stena (Woodring, 1928) Stratigraphy: Golden Gate Member of the Tamiami Formation Location: Bonita Grande Quarry, Lee County, Florida USA. Status: Extinct Notes: Another species also found within the Caribbean Pliocene.
  6. MikeR

    Trochomodulus basileus

    From the album: Gastropods of the Tamiami Formation

    Order [unassigned] Caenogastropoda Family Modulidae Trochomodulus basileus (Guppy, 1873) Stratigraphy: Golden Gate Member of the Tamiami Formation Location: Bonita Grande Quarry, Lee County, Florida USA. Status: Extinct Notes: More common in the Caribbean Pliocene than Florida.
  7. MikeR

    Parviturbo milium

    From the album: Gastropods of the Tamiami Formation

    Order [unassigned] Caenogastropoda Family Skeneidae Parviturbo milium (Dall, 1892) Stratigraphy: Golden Gate Member of the Tamiami Formation Location: Bonita Grande Quarry, Lee County, Florida USA. Status: Extinct Notes: Tiny turban like shell. Only two records of this shell are present within the UFLMNH database, both within the Lower Pleistocene.
  8. MikeR

    Diodora redimicula

    From the album: Gastropods of the Tamiami Formation

    Order Lepetellida Family Fissurellidae Diodora redimicula (Say, 1824) Stratigraphy: Lower Tamiami Formation Bed 10/11 Location: Construction locality, Sarasota County, Florida USA. Status: Extinct Notes: Large keyhole limpet with round subapical perforation. Also found in the Yorktown and Duplin Formations in Virginia and the Carolinas.
  9. MikeR

    Schwartziella floridana

    From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Rissoinidae Schwartziella floridana Olsson & Harbinson, 1953 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: APAC Quarry, Sarasota County, Florida USA. Status: Extinct Notes: A rare shell often overlooked because of its small size.
  10. MikeR

    Rissoina liriope

    From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Rissoinidae Rissoina liriope Olsson & Harbinson, 1953 Stratigraphy: Golden Gate Member of the Tamiami Formation Location: Boca Grande Quarry, Lee County, Florida USA. Status: Extinct Notes: There is only one confirmed record of this species within the Tamiami Formation in the FLMNH invertebrate paleontology database.
  11. MikeR

    Alia gardnerae escarinata

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Columbellidae Alia gardnerae escarinata Olsson & Harbison, 1953 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Lake excavation for a housing project, Sarasota County, Florida USA. Status: Extinct Notes: Specimen pictured shows a preserved color band along the widest area of the final whorl. Although not apparent in the image, the body whorl along the color band is more angulated than A. gardnerae gardnerae.
  12. MikeR

    Strombina margarita

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Columbellidae Strombina margarita Olsson & Harbison, 1953 Stratigraphy: Lower Tamiami Formation Bed 10 Location: Lake excavation for a housing project, Sarasota County, Florida USA. Status: Extinct Notes: Very small with only two confirmed records within the Tamiami in the FLMNH database.
  13. From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Cypraeidae Siphocypraea problematica f. daughenbaughi Berschauer & Waller, 2020 Stratigraphy: Golden Gate Member of the Tamiami Formation Location: Boca Grande Quarry, Lee County, Florida USA. Status: Extinct Notes: A newly described species. The one pictured has exceptional color pattern which is identical to S. problematica found within the Lower Pleistocene Caloosahatchee Formation. This would be a form of S. problematica at best with a lesser length to width ratio and a maybe a more pinched apical sulcus.
  14. MikeR

    Littoraria irrorata

    From the album: Gastropods of the Tamiami Formation

    Order Littorinimorpha Family Littorinidae Littoraria irrorata (Say, 1822) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: APAC Quarry, Sarasota County, Florida USA. Status: Extant Notes: Known as the Marsh Periwinkle, L. irrorata is common within salt marshes of the US Atlantic and Gulf coasts.
  15. MikeR

    Turritella alumensis

    From the album: Gastropods of the Tamiami Formation

    Order [unassigned] Caenogastropoda Family Turritellidae Turritella alumensis Mansfield, 1930 Stratigraphy: Lower Tamiami Formation Bed 10/11 Location: Burrow Pit, Sarasota County, Florida USA. Status: Extinct Notes: Largest Turritellid within the North American Neogene. Common in the Jackson Bluff Formation in the Florida Panhandle, T. alumensis is found mostly in the Lower Tamaimi.
  16. oilshale

    Potamogeton sp.

    Possibly Potamogeton cf. crispa Linné, 1752.
  17. MikeR

    Pliocene Otolith?

    Is anyone good with otoliths? I think, but I am not sure that this is a fish otolith from the Upper Pliocene Jackson Bluff Formation, Leon County, Florida. I apologize for the picture quality but it is as good as I can get from my digital microscope. Approximately 1 cm in length, I would like to know what kind of fish it was from, if possible and if it is an otolith. Thanks Mike
  18. This week, work carried me to South Florida once again and as the winter temperatures were a chilly 70oF, an opportunity to do some weekend collecting at one of my favorite quarries. Unlike the famous shell pits in Sarasota where the Pinecrest Member of Tamiami exposes extensive beds of Pliocene shell, this quarry lying within the coral facies (Golden Gate Member) of the Tamiami is composed of not only shell but limestone, sand and corals. I am constantly confounded with this locality's geology as certain faunal elements suggest Lower Pleistocene Caloosahatchee Formation. Published reports
  19. MikeR

    Cymatophos lindae

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Cymatophos lindae Petuch, 1994 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: APAC Quarry, Sarasota County, Florida USA. Status: Extinct Notes: Very large for the genus. Cymatophos is an extinct genus and the only example from North America.
  20. MikeR

    Calophos wilsoni

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Calophos wilsoni Allmon, 1990 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Quality Aggregates, Sarasota County, Florida USA. Status: Extinct Notes: Many workers have assigned this species to C. plicatilis, a Mexican fossil species. Warren Allmon in his pre-PRI career, separated C. wilsoni from C. plicatilis as a larger shell with a greater variability in its spiral structure.
  21. MikeR

    Calophos nannus

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Calophos nannus Petuch, 1994 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Quality Aggregates, Sarasota County, Florida USA. Status: Extinct Notes: In comparison to C. wilsoni, C. nannus is smaller with more rounded whorls, shorter spiral and faint expression of ribbing. If generic assignment is correct, it is the second described species of Calophos from North America.
  22. MikeR

    Stombinophos maxwelli

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Strombinophos maxwelli Olsson & Harbinson, 1953 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Easily mistaken for a drill or turrid shell. Strong sharp ribs distinguish it from S. floridanus.
  23. MikeR

    Strombinophos floridanus

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Strombinophos floridanaus (Mansfield, 1930) Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: SMR Phase 10 Pit, Sarasota County, Florida USA. Status: Extinct Notes: Similar to S. maxwelli but with fainter, but more numerous ribs.
  24. MikeR

    Ilyanassa floridana

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Ilyanassa floridana M. Smith, 1936 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: Kissimmee River, Highlands County, Florida USA. Status: Extinct Notes: Smooth and globbose; Ilyanassa is a common component in the more northern Late Pliocene/Early Pleistocene deposits of Florida and the Mid-Atlantic. In the Tamiami, the genus is for the most part restricted to the Kissimmee River valley.
  25. MikeR

    Trajana pyta

    From the album: Gastropods of the Tamiami Formation

    Order Neogastropoda Family Nassariidae Trajana pyta Gardner, 1948 Stratigraphy: Pinecrest Sand Member of the Tamiami Formation Location: APAC quarry, Sarasota County, Florida USA. Status: Extinct Notes: Moderate size shell for the family with a closed siphonal canal and a circular aperture, surrounded by a raised peristome. The two living species of this genus are found on the west coast of Mexico.
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