Crurithyris planoconvexa Shumard 1855 (lamp shell)

Rhynchonellata - Spiriferida - Ambocoeliidae

Alternative combinations: Ambocoelia planoconvexa, Spirifer (Martinia) planoconvexus, Spirifer planoconvexa

Full reference: B. F. Shumard. 1855. Description of new species of organic remains. Missouri Geological Survey 2:185-208

Belongs to Crurithyris according to L. Li et al. 1986

See also Chronic 1953, Frech 1911, Kozlowski 1914, Liao 1979, Shumard 1855 and Tschernyschew 1902

Sister taxa: Crurithyris aquilonia, Crurithyris arcuata, Crurithyris calendae, Crurithyris changmeensis, Crurithyris clannyana, Crurithyris expansa, Crurithyris extumida, Crurithyris inflata, Crurithyris longa, Crurithyris longirostris, Crurithyris longtanica, Crurithyris major, Crurithyris muliensis, Crurithyris opalinus, Crurithyris parva, Crurithyris sulcata, Crurithyris tazawai, Crurithyris telleri, Crurithyris tianshengqiaoensis, Crurithyris uralica, Crurithyris urei, Crurithyris wampensis

Ecology: stationary low-level epifaunal suspension feeder

Distribution:

• Permian of Bolivia (29 collections), China (3), Peru (7), Ukraine (2), United States (1: Texas)

• Virgilian of United States (39: Illinois, Kansas, Maryland, New Mexico, Ohio, Pennsylvania, Texas)

• Desmoinesian of United States (57: Kansas, Missouri, Nevada, Oklahoma)

• Atokan of United States (3: Nevada)

• Carboniferous of Bolivia (8), China (1), Peru (2), United States (27: Arizona, Kentucky, Maryland, Nevada, New Mexico, New mexico, Ohio, Oklahoma, Pennsylvania, Texas)

Total: 179 collections each including a single occurrence

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