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Rhynchonella

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Rhynchonella
Temporal range: 466–37 Ma OrdovicianEocene
Rhynchonella species from Russia
Scientific classification
Kingdom:
Phylum:
Class:
Order:
Family:
Rhynchonellidae
Genus:
Rhynchonella

Fischer, 1809

Rhynchonella is an extinct genus of brachiopod known from the Late Jurassic (Oxfordian) to the Early Cretaceous (Valanginian, possibly Barremian).[1] Formerly[2] this genus was understood much more widely (more or less an equivalent of the Rhynchonellida order in the present-day taxonomy) and less critical sources still list species of Rhynchonella from the Ordovician to the Eocene. Like most brachiopods, Rhynchonella was a stationary epifaunal suspension feeder.[3]

Description

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These 1.75 to 3.75 cm long articulate brachiopods are characterized by a triangular shell with a spherical profile, powerful ribs, a curved hinge line and a small umbo. The anterior margin shows a tongue like projection.[4]

Species

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References

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  1. ^ Norman M. Savage et al., Rhynchonellida, [In:] Roger L. Kaesler (ed.), Treatise on Invertebrate Paleontology. Part H, Brachiopoda, Revised, Volume 4: Rhynchonelliformea (part), Boulder, Colorado–Lawrence, Kansas: The Geological Society of America, Inc. and The University of Kansas, 2002, pp. 1026–1376.
  2. ^ Ager, Derek V. (1957). "The true Rhynchonella". Palaeontology. 1 (1): 1–15.
  3. ^ Rhynchonella in the Paleobiology Database
  4. ^ Short notes on Shell, Spirifer, Rhynchonella and Terebratula
  • Frank H.T. Rodes, Herbert S. Zim en Paul R. Shaffer (1993) - Natuurgids Fossielen (het ontstaan, prepareren en rangschikken van fossielen), Zuidnederlandse Uitgeverij N.V., Aartselaar. ISBN D-1993-0001-361