Cephalopoda - Goniatitida - Girtyoceratidae
Alternative combinations: Glyphioceras hathawayanum, Goniatites hathawayana
Belongs to Sagittoceras according to F. B. Plummer and G. Scott 1937
See also Smith 1903
Sister taxa: Girtyoceras acutum, Girtyoceras brueningianum, Girtyoceras cowdalense, Girtyoceras deani, Girtyoceras discus, Girtyoceras endicottense, Girtyoceras glabrum, Girtyoceras gordoni, Girtyoceras hamiltonense, Girtyoceras intracostatum, Girtyoceras kazakhorum, Girtyoceras latum, Girtyoceras meslerianum, Girtyoceras meslerorum, Girtyoceras modestum, Girtyoceras multicameratum, Girtyoceras premeslerianum, Girtyoceras primum, Girtyoceras shorrocksi, Girtyoceras simplex, Girtyoceras waitei, Girtyoceras welleri
Ecology: fast-moving nektonic carnivore
Average measurements (in mm): shell diameter 46.0
Distribution:
• Carboniferous of United States (2: Illinois, Texas 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.