Rhynchonellata - Atrypida - Anazygidae
Full reference: H. J. Howe. 1965. Plectambonitacea, Strophomenacea, and Atrypacea from the Montoya Group (Ordovician) of Trans-Pecos Texas. Journal of Paleontology 39(4):647-656
Belongs to Zygospira according to H. J. Howe 1965
Sister taxa: Zygospira deflecta, Zygospira fallax, Zygospira gutta, Zygospira kentuckiensis, Zygospira lebanonensis, Zygospira matutina, Zygospira meafordensis, Zygospira modesta, Zygospira resupinata
Type specimen: USNM 145058, a shell. Its type locality is Section 2. Bed 03. East-facing escarpment, Franklin Mountains, which is in an Edenian/Maysvillian carbonate dolomite in the Upham Formation of Texas.
Ecology: stationary epifaunal suspension feeder
Distribution:
• Ordovician of Canada (2: Northwest Territories 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.