Anasibirites
| Anasibirites Temporal range:
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|---|---|
Scientific classification 
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| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Subclass: | †Ammonoidea |
| Order: | †Ceratitida |
| Superfamily: | †Noritoidea |
| Family: | †Prionitidae |
| Genus: | † Mojsisovics, 1896 |
| Species | |
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Anasibirites is an extinct genus of ammonoid cephalopod from the lower upper Smithian Wasatchites distractus Zone (Olenekian, Lower Triassic).[1]
Distribution and diversity
Anasibirites is characterized by a cosmopolitan distribution, which is unusual for Smithian aged ammonoids and probably a consequence of the Smithian-Spathian boundary extinction. Although about 60 species were erected, only two are valid, A. kingianus (Waagen, 1895) and A. multiformis Welter, 1922.[1][2][3]
References
- ^ a b Jattiot, Romain; Bucher, Hugo; Brayard, Arnaud; Monnet, Claude; Jenks, James F.; Hautmann, Michael (2016). "Revision of the genus Anasibirites Mojsisovics (Ammonoidea): An iconic and cosmopolitan taxon of the late Smithian (Early Triassic) extinction". Papers in Palaeontology. 2 (1): 155–188. Bibcode:2016PPal....2..155J. doi:10.1002/spp2.1036. hdl:20.500.12210/34589. S2CID 85908694.
- ^ "Fossilworks: Anasibirites multiformis". fossilworks.org. Retrieved 17 December 2021.
- ^ "Fossilworks: Anasibirites simanenkoi". fossilworks.org. Retrieved 17 December 2021.