Abstract
The article reviews the evolution of the family Rhiphaeoceratidae and provides information on the stratigraphic and geographical distribution of its representatives. A new genus Eximioceras with the type species E. venustum sp. nov. and a new species Pararhiphaeoceras parvum, also belonging to this family, are described within Rhiphaeoceratidae. New records expand our understanding of the taxonomic diversity of the Shakhtau Reef cephalopod community and add to its ecological interpretation.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
REFERENCES
Haniel, C.A., Die Cephalopoden der Dyas von Timor, Paläontol. Timor, 1915, vol. 3, no. 6, pp. 128–129.
Kummel, B., Nautiloidea–Nautilida, in Treatise on Invertebrate Paleontology. Part K. Mollusca 3, Lawrence: Univ. Kansas Press, 1964, pp. K383–K457.
Leonova, T.B. and Shchedukhin, A.Yu., Asselian–Sakmarian nautiloids of the Shakh-Tau reef (Bashkortostan), Paleontol. J., 2020, vol. 54, no. 10, pp. 1113–1134.
Mazaev, A.V., Lower Permian gastropods of Shakhtau (Asselian–Sakmarian boundary beds, Southern Cisuralia), Paleontol. J., 2019, vol. 53, no. 12, pp. 1237–1345.
Ruzhencev, V.E. and Bogoslovskaya M.F., Namurian Stage in the evolution of ammonoids. Early Namurian ammonoids, in Tr. Paleontol. Inst. Akad. Nauk SSSR (Trans. Paleontol. Inst. USSR Acad. Sci.), 1971, vol. 133, pp. 1–382.
Ruzhencev, V.E. and Shimansky, V.N., Lower Permian coiled and curved nautiloids of the Southern Urals, in Tr. Paleontol. Inst. Akad. Nauk SSSR (Trans. Paleontol. Inst. USSR Acad. Sci.), 1954, vol. 50, pp. 1–150.
Shchedukhin, A.Yu. and Leonova, T.B., Late Artinskian nautiloids of the Shakh-Tau reef (Bashkortostan), Paleontol. J., 2020, vol. 54, no. 10, pp. 1135–1151.
Shimansky, V.N., Order Nautilida, in Osnovy paleontologii. Mollyuski—Golovonogie. I (Fundamentals of Paleontology. Mollusks—Cephalopods. I, Ruzhencev, W.E., Ed., Moscow: Akad. Nauk SSSR, 1962, pp. 115–154.
Shimansky, V.N., New nautiloids from the Upper Paleozoic of Transcaucasia, Byull. Mosk. Obshch. Ispyt. Prir., Otd. Geol., 1979, vol. 54, no. 3, pp. 54–61.
ACKNOWLEDGMENTS
The author is sincerely grateful to A.V. Mazaev, the organizer of the fieldwork on the Shakhtau Shikhan, as well as to the reviewers of the paper for valuable and constructive comments, which made it possible to improve its content.
Funding
This work was supported by the Russian Science Foundation grant no. 22-24-00099, “Evolution of Molluskan Communities in the Early Permian Shakhtau Reef”.
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
The author declares that he has no conflict of interest.
Additional information
Translated by S. Nikolaeva
Rights and permissions
About this article
Cite this article
Shchedukhin, A.Y. New Early Permian Nautilids of the Family Rhiphaeoceratidae of the Shakhtau Reef (Bashkortostan). Paleontol. J. 56, 601–605 (2022). https://doi.org/10.1134/S0031030122060090
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1134/S0031030122060090