Rhynchonellata - Spiriferida - Elythidae
Alternative combinations: Phricodothyris perplexa, Spirifer perplexa, Squamularia perplexa
Full reference: A. M. McChesney. 1859. Descriptions of new species of fossils from the Paleozoic rocks of the western states. Transactions of the Chicago Academy of Sciences 1:1-76
Belongs to Condrathyris according to R. D. Hoare 1961
See also Dunbar and Condra 1932, Girty 1915, McChesney 1859, Morningstar 1922 and Shimer and Shrock 1944
Sister taxa: Phricodothyris asiatica, Phricodothyris bachuensis, Phricodothyris bella, Phricodothyris catatona, Phricodothyris dispar, Phricodothyris echinata, Phricodothyris formilla, Phricodothyris guadalupensis, Phricodothyris guizhouensis, Phricodothyris indenta, Phricodothyris kawaiensis, Phricodothyris longlinensis, Phricodothyris nummulina, Phricodothyris occidentalis, Phricodothyris pyriformis, Phricodothyris reticulariformis, Phricodothyris septata, Phricodothyris sibirica, Phricodothyris subrostrata, Phricodothyris tieliensis, Phricodothyris toriyamai, Phricodothyris uzunbulakensis, Phricodothyris xikouensis, Squamularia (Neophricodothyris) bilotensis, Neophricadothyris conara, Squamularia (Neophricodothyris) spatulata, Squamularia (Neophricodothyris) oviformis, Neophricadothyris transversa, Squamularia (Neophricodothyris) frechi, Squamularia (Neophricodothyris) baralensis, Squamularia (Neophricodothyris) attenuata, Neophricadothyris crassibecca
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of United States (11: Alaska, New Mexico, Texas collections)
• Virgilian of United States (42: Illinois, New Mexico, Texas)
• Desmoinesian of United States (66: Kansas, Missouri, New Mexico, Pennsylvania)
• Carboniferous of United States (16: Alaska, New Mexico, New mexico, Texas, Utah)
• Mississippian of United States (2: Alaska)
Total: 137 collections including 138 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.