Rhynchonellata - Athyridida - Athyrididae
Alternative combination: Araxathyris emarginata
Full reference: G. H. Girty. 1908. The Guadalupian fauna. United States Geological Survey Professional Paper 58:1-651
Belongs to Composita according to G. A. Cooper and R. E. Grant 1976
See also Jin and Ye 1979
Sister taxa: Athyris (Composita) indosinensis, Athyris (Composita) semirostrata, Composita affinis, Composita apheles, Composita apsidata, Composita argentea, Composita bamberi, Composita biforma, Composita bucculenta, Composita costata, Composita cracens, Composita crassa, Composita depressa, Composita discina, Composita elongata, Composita enormis, Composita girtyi, Composita globosa, Composita grandis, Composita hapsida, Composita huagongensis, Composita idahoensis, Composita imbricata, Composita insulcata, Composita jogensis, Composita laevis, Composita lewisensis, Composita magnicarina, Composita mexicana, Composita minuscula, Composita mira, Composita misriensis, Composita nucella, Composita obesa, Composita ovata, Composita parasulcata, Composita pikensis, Composita pilula, Composita plana, Composita prospera, Composita pyriformis, Composita quadrirotunda, Composita quantilla, Composita rotunda, Composita sigma, Composita stalagmium, Composita strongyle, Composita subcircularis, Composita subquadrata, Composita subtilita, Composita sulcata, Composita tareica, Composita tetralobata, Composita tobaensis, Composita trinuclea
Type specimen: USNM 118608a, a shell (Articulated shell)
Ecology: stationary low-level epifaunal suspension feeder
Distribution:
• Permian of China (1 collection), United States (34: New Mexico, Texas)
Total: 35 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.