Cephalopoda - Ceratitida - Proteusitidae
Alternative combination: Sibyllites louderbacki
Synonyms: Tropigastrites obliterans Smith 1914, Tropigastrites powelli Smith 1914, Tropigastrites trojanus Smith 1914
Full reference: A. Hyatt and J. P. Smith. 1905. The Triassic cephalopod genera of America. United States Geological Survey Professional Paper 40:1-394
Belongs to Tropigastrites according to C. Monnet and H. Bucher 2005
See also Hyatt and Smith 1905, Silberling and Nichols 1982, Smith 1914 and Spath 1951
Sister taxa: Tropigastrites costatus, Tropigastrites lahontanus
Type specimens:
- Tropigastrites louderbacki: Its type locality is Divide between Troy Canyon and South Fork of American Canyon (meeki), which is in an Illyrian marine limestone in Nevada
- Tropigastrites obliterans: Its type locality is Divide between Troy Canyon and South Fork of American Canyon (meeki), which is in an Illyrian marine limestone in Nevada.
- Tropigastrites powelli: Its type locality is Divide between Troy Canyon and South Fork of American Canyon (meeki), which is in an Illyrian marine limestone in Nevada.
- Tropigastrites trojanus: Its type locality is Divide between Troy Canyon and South Fork of American Canyon (meeki), which is in an Illyrian marine limestone in Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 39.9
Distribution:
• Triassic of Svalbard and Jan Mayen (1 collection), United States (9: Nevada)
Total: 10 collections including 13 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.