Rhynchonella

Rhynchonella obsoleta, from Chapuis & Dewalque (1853).

Belongs within: Rhynchonellidae.

Rhynchonella is a genus of cynocephalous brachiopods known from the Upper Jurassic (Ager et al. 1965).

Characters (Ager et al. 1965): Small to medium in size, triangular; dorsal fold high, ventral sulcus somewhat flattened; few sharp costae anteriorly; beak small, incurved. Dental plates strong, septalium shallow, dorsal septum short; crura radulifer.

<==Rhynchonella Fischer 1809 [=Eurhynchonella Leidhold 1920]AG65
|--*R. loxiae Fischer 1809 [=*Eurhynchonella loxiae]AG65
|--R. anceps Chapuis & Dewalque 1853CD53
|--R. angulataCD53
|--R. anticostiensisW77
|--R. argenturbica White 1874W77
|--R. buchii (Roemer 1836) [=Terebratula buchii]CD53
|--R. concinnaCD53
|--R. confinensisG31
|--R. davidsoni Chapuis & Dewalque 1853CD53
|--R. edwardsi Chapuis & Dewalque 1853CD53
|--R. eucharisH04
|--R. grandirostrisG31
|--R. inauritaH04
|--R. lacunosaCD53
|--R. langleti Chapuis & Dewalque 1853CD53
|--R. metallica White 1874W77
|--R. minutaCD53
|--R. multiformisCD53
|--R. nigricansH04
|--R. niobe Chapuis & Dewalque 1853CD53
|--R. nymphaH04
|--R. oblitaH04
|--R. obsoleta (Sow. 1812) [=Terebratula obsoleta]CD53
|--R. pallas Chapuis & Dewalque 1853CD53
|--R. pleurodonF71
|--R. psittaceaH04
|--R. quadriplicataCD53
|--R. reniformisW77
|--R. retiferaG31
|--R. rockymontana (Marcou 1858) [=Terebratula rockymontana; incl. R. eatoniaeformis McChesney 1860]W77
|--R. rostrataCD53
|--R. subtetraedraCD53
|--R. subvariabilisCD53
|--R. sutherlandiaeH79
|--R. theodoriCD53
|--R. uta (Marcon 1858) [=Terebratula uta; incl. R. (Camarophora) osagensis Swallow 1858]W77
|--R. variabilis (Schloth. 1813) (see below for synonymy)CD53
|--R. variansB89
|--R. wasatchensis White 1874W77
|--R. wilsoniR87
`--R. wynneiG31

Rhynchonella variabilis (Schloth. 1813) [=Terebratulites variabilis, Terebratula variabilis; incl. Terebratula bidens Phill. 1835, Terebratula triplicata Phill. 1835]CD53

*Type species of generic name indicated

References

[AG65] Ager, D. V., R. E. Grant, D. J. McLaren & H. Schmidt. 1965. Rhynchonellida. In: Moore, R. C. (ed.) Treatise on Invertebrate Paleontology pt H. Brachiopoda vol. 2 pp. H552–H632. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas Press: Lawrence (Kansas).

[B89] Boehm, G. 1889. Ein Beitrag zur Kenntniss fossiler Ophiuren. Berichte der Naturforschenden Gesellschaft zu Freiburg I. B. 4: 232–287, pls 4–5.

[CD53] Chapuis, F., & G. Dewalque. 1853. Description des fossiles des terrains secondaires de la province de Luxembourg. M. Hayez: Bruxelles.

[F71] Fletcher, H. O. 1971. Catalogue of type specimens of fossils in the Australian Museum, Sydney. Australian Museum Memoir 13: 1–167.

[G31] Grabau, A. W. 1931. The Permian of Mongolia: A report on the Permian fauna of the Jisu Honguer limestone of Mongolia and its relations to the Permian of other parts of the world. American Museum of Natural History: New York.

[H04] Haeckel, E. 1899–1904. Kunstformen der Natur. Bibliographisches Institut: Leipzig und Wien.

[H79] Hölder, H. 1979. Jurassic. In: Robison, R. A., & C. Teichert (eds) Treatise on Invertebrate Paleontology pt A. Introduction. Fossilisation (Taphonomy), Biogeography and Biostratigraphy pp. A390–A417. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

[R87] Ratte, F. 1887. Notes on Australian fossils. Proceedings of the Linnean Society of New South Wales, series 2, 1 (4): 1065–1084, pls 15–17.

[W77] White, C. A. 1877. Report upon the invertebrate fossils collected in portions of Nevada, Utah, Colorado, New Mexico, and Arizona, by parties of the expeditions of 1871, 1872, 1873, and 1874. U.S. Geographical Surveys West of the One Hundredth Meridian 4 (1): 1–219, pls 1–21.

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