Strepsodiscus Knight 1948 (snail)

Gastropoda - Bellerophontida - Tropidodiscidae

Alternative spelling: Streptodiscus

Synonym: Chalarostrepsis Knight 1948

Full reference: J. B. Knight. 1948. Further new Cambrian bellerophont gastropods. Smithsonian Miscellaneous Collections 111(3):1-6

Parent taxon: Temnodiscinae according to P. J. Wagner 2023

See also HornĂ½ 1963, Knight et al. 1960, Runnegar and Jell 1976, Sepkoski 2002, Wagner 1999 and Yochelson and Nuelle 1985

Sister taxa: Cyrtolitina, Eobucania, Peelerophon, Peruniscus, Pharetrolites, Temnodiscus

Subtaxa: Strepsodiscus austrinus Strepsodiscus franconiensis Strepsodiscus hoyti Strepsodiscus major Strepsodiscus minutissimus Strepsodiscus pagoda Strepsodiscus paucivoluta Strepsodiscus praecursor Strepsodiscus shinetonensis Strepsodiscus splettstoesseri Strepsodiscus strongi

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Type: Strepsodiscus major

Ecology: slow-moving low-level epifaunal detritivore

Distribution:

• Ordovician of the United Kingdom (1 collection), United States (3: Missouri, Texas)

• Cressagian of the United Kingdom (1)

• Cambrian of Antarctica (2), Argentina (2), Canada (1: Quebec), China (1), United States (7: Colorado, Minnesota, Missouri, New York)

Total: 18 collections including 19 occurrences

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