Tyersella

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

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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

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Specimen images are retrieved through the ePANDDA API.


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