Full reference: D. G. Taylor. 1998. Late Hettangian-early Sinemurian (Jurassic) ammonite biochronology of the western Cordillera, United States. Geobios 31:467-497
See also Taylor 1998
Type specimen: CAS 66699.01, a shell. Its type locality is First Canyon, Shoshone Mountains (Canadensis zone), which is in an Angulata marine limestone in the Sunrise Formation of Nevada.
Ecology: nektonic carnivore
Average measurements (in mm): shell diameter 48.6
Total: 7 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.