Ribeiria

Not to be confused with Ribeiroia.
Ribeiria
Temporal range: Mid Cambrian–Silurian[1]
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Rostroconchia
Order: Ribeirioida
Genus: Ribeiria
Sharpe, 1853
Species
  • R. junior Runnegar, 1996
  • (Incomplete list, )

Ribeiria is a genus of rostroconch mollusc with a pegma, once interpreted as an intermediate between helcionellids (such as Anabarella and Latouchella) and primitive scaphopods (such as Pinnocaris).[2]

References

  1. Woodward, Samuel Peckworth; Tate, Ralph (1868). A manual of the Mollusca: being a treatise on recent and fossil shells.
  2. Peel, J. S. (1991). "Functional Morphology of the Class Helcionelloida Nov., and the Early Evolution of the Mollusca". In Simonetta, A. M.; Conway Morris, S. The Early Evolution of Metazoa and the Significance of Problematic Taxa. Cambridge U. Pr. pp. 157–177. ISBN 978-0-521-40242-2.
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