Xenoceltites Temporal range: Olenekian PreꞒ Ꞓ O S D C P T J K Pg N ↓ | |
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Scientific classification | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Mollusca |
Class: | Cephalopoda |
Subclass: | †Ammonoidea |
Order: | †Ceratitida |
Family: | †Xenoceltitidae |
Genus: | †Xenoceltites Spath, 1930 |
Xenoceltites is an extinct genus of ceratite ammonoid found worldwide in the Lower Triassic.
Diagnosis
One of the earliest ceratites, Xenoceltites has a narrow planospiral shell with a compressed whorl section, that has a suture with two weakly toothed lateral lobes and irregular ribbing.
Classification
Xenoceltites belongs to the Xenoceltitidae, a family within the order Ceratitida that with two others form the superfamily Xenodiscaceae.
References
- "The Paleobiology Database".
- Piazza, Veronica; Hammer, Øyvind; Jattiot, Romain (2017). "New late Smithian (Early Triassic) ammonoids from the Lusitaniadalen Member, Vikinghøgda Formation, Svalbard" (PDF). Norwegian Journal of Geology. 97 (2): 105–117. doi:10.17850/njg97-2-03. S2CID 134244921.
- Arkell, W.J.; Furnish, W. M.; Kummel, B.; Miller, A. K.; Moore, R. C.; Schindewolf, O. H.; Sylvester-Bradley, P. C.; Wright, C. W. (1957). "Part L—Mollusca 4, Cephalopoda, Ammonoidea". In R.C. Moore (ed.). Treatise on Invertebrate Paleontology. Geological Society and University of Kansas Press. ISBN 0-8137-3012-0.
Taxon identifiers | |
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Xenoceltites |
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