Rhynchonellata - Rhynchonellida - Petasmatheridae
Alternative spelling: Ellassonia
Full reference: G. A. Cooper and R. E. Grant. 1976. Permian Brachiopods from West Texas, IV. Smithsonian Contributions to Paleobiology 21:1923-2607
Parent taxon: Petasmatheridae according to A. Williams et al. 2002
See also Carter and Poletaev 1998 and Sepkoski 2002
Sister taxa: Iotina, Petasmatherus, Ptygmactrum
Subtaxa: Elassonia micraria Elassonia petila Elassonia scitula Elassonia sobrina
Type: Elassonia micraria
Ecology: stationary epifaunal suspension feeder
Distribution:
• Permian of United States (13: Texas collections)
• Carboniferous of Canada (1: Nunavut)
Total: 14 collections each including a single occurrence
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.