Tryblidium Angelin and Lindström 1880 (mollusk)

Tergomya - Tryblidiida - Tryblidiidae

Alternative spellings: Triblidium, Triblydium

Full reference: N.P. Angelin and G. Lindström. 1880. Fragmenta Silurica e dono Caroli Henrici Wegelin. Opus studio Nicolai Petri Angelin Inchoatum Jussu et Impensis Academiae Regiae Scientarum Suecicae 1-60

Parent taxon: Tryblidiidae according to B. Runnegar and P.A. Jell 1976

See also Knight and Yochelson 1960, Koken 1897, Sepkoski 2002, Sloan and Webers 1987 and Starobogatov 1970

Sister taxa: Archaeophialinae, Archinacellina, Bipulvina, Drahomira, Drahomirinae, Kotysium, Litavina, Neopilininae, Peelipilina, Pentalina, Pragamira, Proplina, Proplininae, Retipilina, Tryblidiinae, Undicornu

Subtaxa: Tryblidium (Pilina) Tryblidium arctica Tryblidium erato Tryblidium eubule Tryblidium exserta Tryblidium hyrie Tryblidium modestum Tryblidium niobe Tryblidium nycteis Tryblidium ovale Tryblidium ovatum Tryblidium reticulatum Tryblidium rugosum Tryblidium simplex Tryblidium thorsteinssoni

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Type: Tryblidium reticulatum

Ecology: epifaunal grazer

Distribution:

• Silurian of Canada (1: Nunavut collection), Estonia (3), Greenland (1), Sweden (3)

• Ordovician of Canada (3: Quebec), Sweden (1), United States (13: Illinois, Iowa, Minnesota, Missouri, Vermont, Wisconsin)

• Cambrian of United States (1: New York)

Total: 26 collections including 28 occurrences

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