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Showing results for tags 'calyptraeidae'.
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Example of stacked individuals.
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- calabrian
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From the album: Gastropods of the Tamiami Formation
Crepidula depressa Say, 1822 Location: SMR Phase 10, Sarasota County, Florida USA. Status: Extant Notes: Flat to concave due to its preference for attachment on the inside of the aperture of dead gastropods. Fossil species have traditionally been named Crepidula plana also a species still living today. Molecular studies have shown that although nearly identical in appearance C. depressa is a different species restricted to the warmer waters of Florida while C. plana extends along the Northern Atlantic as far south as the Carolinas and Georgia.-
- calyptraeidae
- mr 9435-1017
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From the album: Gastropods of the Tamiami Formation
Crepidula fornicata (Linneaus, 1758) Location: SMR Phase 10, Sarasota County, Florida USA. Status: Extant Notes: Most examples of this species both fossil and living are highly inflated and demonstrate stacking. Compare to LINK. The vast majority of this species from the Sarasota pits are much less inflated. These might represent ecomorphs.-
- calyptraeidae
- mr 9439-1017
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From the album: Gastropods of the Tamiami Formation
Crepidula cymbaeformis (Conrad, 1841) Location: APAC, Sarasota County, Florida USA. Status: Extinct Notes: Longer than wide with apex extended from the body of the shell. Campbell (1994) noted the ability of the animal to absorb hematite into the interior of the shell which helps in identification.-
- calyptraeidae
- mr1290-92
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From the album: Gastropods of the Tamiami Formation
Bostrycapulus aculeata aculeata (Gmelin, 1791) Location: SMR Phase 10, Sarasota County, Florida USA. Status: Extant Notes: Small low relief with several rows of longer spines among many more rows with smaller spines.-
- calyptraeidae
- mr 11895-1017
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From the album: Gastropods of the Tamiami Formation
Bostrycapulus aculeata ponderosa (H.C. Lea, 1843) Location: APAC, Sarasota County, Florida USA. Status: Extinct Notes: Campbell (1994) listed all spiny slipper shells from the Southeastern USA as one of two subspecies of the extant B. aculeata. Subspecies ponderosa is highly inflated and it is variable in terms of spines as stacked individuals will remove spines of individual below. Due to different life style from extant B. aculeata this could be considered a separate species.-
- calyptraeidae
- mr 1252-92
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From the album: Gastropods of the Tamiami Formation
Crucibulum multilineatum (Conrad, 1841)Location: APAC, Sarasota County, Florida USA.Status: Extinct Notes: Distinctive very fine ribbing.-
- calyptraeidae
- mr 1260-92
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From the album: Gastropods of the Tamiami Formation
Crucibulum spinosum (Sowerby, 1824)Location: APAC, Sarasota County, Florida USA.Status: Extant Notes: Broad ribs with spiny exterior.-
- calyptraeidae
- mr1258-92
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From the album: Gastropods of the Tamiami Formation
Crucibulum scutellatum (Wood, 1828)Location: SMR Phase 10 pit, Sarasota County, Florida USA.Status: Extinct Notes: Similar to C. auricula but with distinctive cross ribbing which gives this species a distinctive net-like pattern.-
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- calyptraeidae
- mr 9437-1017
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From the album: Gastropods of the Tamiami Formation
Crucibulum auricula (Gmelin, 1791)Location: SMR Phase 10 pit, Sarasota County, Florida USA.Status: Extant Notes: Ribbing without much interspace. Cup-like muscle shelf.-
- calyptraeidae
- mr 9436-1017
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From the album: Gastropods of the Tamiami Formation
Trochita floridana Olsson & Petit, 1964Location: SMR Phase 10 pit, Sarasota County, Florida USA.Status: Extinct Notes: Ribbing reminiscent of many Crucibulum however the muscle shelf is not shaped like a cup but straight.-
- calyptraeidae
- mr 1326-1017
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From the album: Gastropods of the Tamiami Formation
Calyptraea centralis (Conrad, 1841)Location: SMR Phase 10 pit, Sarasota County, Florida USA.Status: Extant Notes: Growth lines with no ribbing creating a smooth appearance. Muscle shelf straight.-
- calyptraeidae
- mr 9439-1017
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Reference Ward, L. W., and Blackwelder, B. W. 1987. Upper Pliocene and lower Pleistocene mollusks of the Lee Creek mine, Aurora, North Carolina, in Ray, C. E., editor, Geology and Paleontology of the Lee Creek Mine, North Carolina, vol. II: Smithson, Contrib. Paleobiol. 61:113-283.
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- calyptraeidae
- chowan river formation
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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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- calyptraeidae
- chowan river formation
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Reference Richards, H. G. 1943. Additions to the fauna of the Trent Marl of North Carolina. Journal of Paleontology, 17: 518-526.
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- belgrade formation
- calyptraeidae
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Reference Richards, H. G. 1943. Additions to the fauna of the Trent Marl of North Carolina. Journal of Paleontology, 17: 518-526.
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- belgrade formation
- calyptraeidae
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