†family Theodossiidae Ivanova 1959 (lamp shell)

Rhynchonellata - Spiriferida - Theodossiidae

Parent taxon: Theodossioidea according to A. Williams et al. 2006

Sister taxa: Palaeochoristitidae, Ulbospiriferidae

Subtaxa: Branikiinae Theodossiinae

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Type: Theodossia

Ecology: stationary epifaunal suspension feeder

Distribution:

• Devonian of Canada (4: Alberta, British columbia, Northwest Territories collections), the Czech Republic (1), the Russian Federation (5), United States (16: Alaska, Iowa), Vietnam (1)

Total: 27 collections including 31 occurrences

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