Inoperna Conrad, 1875
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publication ID |
https://doi.org/10.4202/app.00554.2018 |
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publication LSID |
lsid:zoobank.org:pub:E6189ABB-9B6F-4057-BB8D-798C9B0BE388 |
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DOI |
https://doi.org/10.5281/zenodo.10986901 |
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persistent identifier |
https://treatment.plazi.org/id/320C87F4-4657-FFC0-FFEF-FBF5FD4ED964 |
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treatment provided by |
Felipe (2024-04-16 16:16:57, last updated 2024-11-24 23:28:08) |
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scientific name |
Inoperna Conrad, 1875 |
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Genus Inoperna Conrad, 1875 View in CoL
Type species: Inoperna carolinensis Conrad, 1875 ; Campanian– Maastrichtian , Upper Cretaceous, southeastern USA .
Remarks.— Inoperna Conrad, 1875 , is a poorly known mytilid bivalve genus reported from Mesozoic shallow-water deposits (e.g., Woods 1900; Stephenson 1923; Wade 1926; Cox and Arkell 1948; Hautmann 2001). Specimens assigned to Inoperna are elongate, thin-shelled mytiliform bivalves with subterminal umbones and characteristic ornament of commarginal corrugations, some of which merge into bundles of dorsal commarginal folds. Ten species, including Inoperna plenicostata ( Anderson, 1970) discussed herein, have been recorded previously ( Stenzel et al. 1957: 74; Vonderbank 1970). Mauricia Harris, 1919, from the middle Eocene Cook Mountain Formation (Claiborne Group) in Texas, USA, is similar to Inoperna with respect to shell shape and ornament and could represent the same lineage ( Stenzel et al. 1957).
Anderson, H. - J. 1970. Pelecypoda. In: K. Vonderbank (ed.), Geologie und Fauna der tertiaren Ablagerungen Zentral-Spitzbergens. Norsk Polarinstituts Skrifter 153: 89 - 101.
Conrad, T. A. 1875. Descriptions of new genera and species of fossil shells of North Carolina in the State Cabinet at Raleigh. In: W. C. Kerr (ed.), Appendix A. Report of the Geological Survey of North Carolina 6: 1 - 13.
Cox, L. R. and Arkell, W. J. 1948. A survey of the Mollusca of the British Great Oolite Series. Primarily a nomenclatoral revision of the mongraphs by Morris and Lycett (1851 - 1855), Lycett (1863) and Blake (1905 - 1907). Monograph of the Palaeontographical Society 102: 1 - 48.
Harris, G. D. 1919. Pelecypoda of the St. Maurice and Claiborne stages. Bulletins of American Palaeontology 6: 1 - 202.
Hautmann, M. 2001. Die Muschelfauna der Nayband-Formation (Obertrias, Nor-Rhat) des ostlichen Zentraliran. Beringeria 29: 3 - 181.
Stenzel, H. B., Krause, E. K., and Twining, J. T. 1957. Pelecypoda from the type locality of the Stone City beds (Middle Eocene) of Texas. The University of Texas Publication 5704: 3 - 196.
Stephenson, L. W. 1923. The Cretaceous formations of North Carolina. Part 1. Invertebrate fossils of the Upper Cretaceous formations. North Carolina Geological and Economic Survey 5: 1 - 408.
Vonderbank, K. (ed.) 1970. Geologie und Fauna der tertiaren Ablagerungen Zentral-Spitsbergens. Norsk Polarinstitutt Skrifter 153: 5 - 119.
Wade, B. 1926. The Fauna of the Ripley Formation on Coon Creek, Tennessee. United States Geological Survey Professional Paper 137: 1 - 272.
Woods, H. 1900. A monograph of the Cretaceous Lamellibranchia of England. Part. 2. Palaeontographical Society Monographs 54: 73 - 112.
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