Cephalopoda - Goniatitida - Girtyoceratidae
Full reference: M. Gordon, Jr. 1964. California Carboniferous cephalopods. United States Geological Survey Professional Paper 483-A:A1-A27
Belongs to Eumorphoceras according to A. L. Titus 2000
See also Gordon 1964 and Ruzhentsev and Bogoslovskaya 1971
Sister taxa: Eumorphoceras angustum, Eumorphoceras bisati, Eumorphoceras bisulcatum, Eumorphoceras brevornatum, Eumorphoceras chungweiense, Eumorphoceras girtyi, Eumorphoceras goddardensis, Eumorphoceras hudsoni, Eumorphoceras involutum, Eumorphoceras medusa, Eumorphoceras milleri, Eumorphoceras ornatissimum, Eumorphoceras pseudobilingue, Eumorphoceras pseudocoronula, Eumorphoceras richardsoni, Eumorphoceras rostratum, Eumorphoceras rota, Eumorphoceras rotuliforme, Eumorphoceras stubblefieldi, Eumorphoceras tornquisti, Eumorphoceras transuralense, Eumorphoceras tumulosum
Type specimen: LSJU 9163, a shell. Its type locality is USGS loc. 15783-PC, Cottonwood Mountains, which is in an Arnsbergian marine limestone/siltstone in the Rest Spring Formation of California.
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 18.1
Distribution:
• Carboniferous of the Russian Federation (1 collection), United States (1: California)
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.