Cephalopoda - Ceratitida - Proptychitidae
Full reference: J. F. Jenks, A. Brayard, T. Brühwiler and H. Bucher. 2010. New Smithian (Early Triassic) ammonoids from Crittenden Springs, Elko County, Nevada: implications for taxonomy, biostratigraphy and biogeography. New Mexico Museum of Natural History and Science Bulletin 48:1-41
Belongs to Pseudaspidites according to J. F. Jenks et al. 2010
Sister taxa: Pseudaspidites muthianus, Pseudaspidites planus, Pseudaspidites popovi, Pseudaspidites wheeleri, Pseudaspidites yudishthira
Type specimen: NMMNH P-51301. Its type locality is Crittenden Springs, Meekoceras gracilitatis zone sample 6, which is in a Smithian open shallow subtidal limestone in the Thaynes Formation of Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 84.2
Distribution:
• Triassic of United States (2: Nevada collections)
Total: 2 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.