Cephalopoda - Ceratitida - Ceratitidae
Alternative combination: Beyrichites dunni
Synonyms: Beyrichites osmonti Smith 1914, Ceratites williamsi Smith 1914
Full reference: J. P. Smith. 1914. The Middle Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 83:1-254
Belongs to Parafrechites according to N. J. Silberling and K. M. Nichols 1982
See also Bychkov et al. 1976, Smith 1914 and Spath 1934
Sister taxa: Parafrechites cordeyi, Parafrechites egorovi, Parafrechites evolutus, Parafrechites kharaulakhensis, Parafrechites meeki, Parafrechites sublaqueatus
Type specimens:
- Parafrechites dunni: Its type locality is Divide between Troy Canyon and South Fork of American Canyon (meeki), which is in an Illyrian marine limestone in Nevada
- Beyrichites osmonti: Its type locality is Divide between Troy Canyon and South Fork of American Canyon (meeki), which is in an Illyrian marine limestone in Nevada.
- Ceratites williamsi: Its type locality is Lucky Dog mine, Cottonwood Canyon, West Humboldt Range, which is in an Anisian carbonate limestone in Nevada.
Average measurements (in mm): shell diameter 51.6
Distribution:
• Triassic of the Russian Federation (2 collections), United States (7: Nevada)
Total: 9 collections including 12 occurrences
Specimen images are retrieved through the ePANDDA API.
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