†family Spirostylidae Cossmann 1909 (snail)

Gastropoda - Murchisoniina - Spirostylidae

Parent taxon: Loxonematoidea according to W. F. Ponder and A. Warén 1988

See also Bouchet et al. 2005

Sister taxa: Acrospira, Crassimarginatidae, Loxonematidae, Palaeozygopleuridae, Scoliostomatidae, Soleniscidae, Vetotuba, Zygopleuridae

Subtaxa: Doellocosmia Euthystylus Heligmostylus Spirostylus

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Ecology: facultatively mobile epifaunal suspension feeder

Distribution:

• Triassic of China (11 collections), Hungary (4), Iran (1), Italy (17), Jordan (1), Peru (1), Slovakia (1), United States (1: Idaho)

• Permian of China (1)

Total: 38 collections including 58 occurrences

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