Rhynchonelloidella smithi
| Rhynchonelloidella smithi Temporal range: Middle Jurassic,
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| Rhynchonelloidella smithi, brachial valve | |
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| Species: | † R. smithi
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| † Rhynchonelloidella smithi (Davidson, 1878)
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Rhynchonelloidella smithi is a species of extinct, small-sized brachiopods, a marine rhynchonellate lampshell in the family Rhynchonellidae. It is roughly 9/16 inch (1.4 cm), and has about 21 ribs fanning out from the hinge.
Distribution
Rhynchonelloidella alemanica is known from the later Middle Jurassic (Bathonian) of England and Germany. The specimen that the description is based upon was collected in Fuller's Earth Rock, near Bath, Somerset, England (lectotype).[1] Further specimens were collected from Weymouth, Bruton, Wiltshire, Gloucester, and Lamyat Beacon,[2] Dyrham, Avon, Bristol Channel,[3] Whatley, Somerset,[4] and Sengenthal, Germany.
Habitat
During the Middle c, the fossil locations cited were on continental shelves, probably in tropical, shallow coral seas, where this lampshell lived as a stationary epifaunal suspension feeder.[5]
Gallery
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brachial valve -
pedunculate valve -
view of the hinge -
view of the opening -
lateral view
References
- ^ Muir-Wood, H.M. (1936). A Monograph of the Brachiopoda of the British Great Oolite Series, Part 1: The Brachiopoda of the Fuller's Earth. Vol. 89. Palaeontographical Society. pp. 1–144, plate 1-5.
- ^ Shi, Xiao-ying; Grant, Richard E. (1993). Jurassic Rhynchonellids: internal structures and taxonomic revisions (PDF). Smithsonian contributions to paleobiology. Vol. 73.
- ^ "Earth Lab Datasite". Natural History Museum.
- ^ Sylvester-Bradley, P. C.; Hodson, Frank; Arkell, W. J. (1957). "The Fuller's Earth of Whatley, Somerset". Geological Magazine. 94: 312–325. doi:10.1017/s0016756800068758.
- ^ "Rhynchonelloidella smithi". Paleobiology Data Base.