Rhynchonellata - Orthida - Dalmanellidae
Alternative spelling: Isorthis (Tyersella)
Parent taxon: Isorthinae according to A. Williams et al. 2000
See also Sepkoski 2002 and Sheehan 1976
Sister taxa: Costisorthis, Isorthis, Levenea, Peleicostella, Protocortezorthis
Subtaxa: Isorthis (Tyersella) amplificata Tyersella typica
Ecology: stationary epifaunal suspension feeder
Distribution:
• Devonian of Argentina (1 collection), Australia (14), Canada (2: Northwest Territories, Yukon), the Czech Republic (1), Germany (1), Morocco (3), Spain (1), United States (1: Nevada)
• Jaani of Lithuania (2)
• Silurian of Australia (3), Belarus (2), Canada (1: Yukon Territory), Lithuania (22), the United Kingdom (2)
Total: 56 collections including 58 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.