Petrocrania Raymond 1910 (lamp shell)

Craniata - Craniida - Craniidae

Synonym: Philhedrella Kozlowski 1929

Parent taxon: Craniidae according to A. Williams et al. 2000

See also Hoare 1961, Mitchell 1977, Sepkoski 2002 and Wright 1963

Sister taxa: Acanthocrania, Ancistrocrania, Celidocrania, Conocrania, Crania, Craniscus, Danocrania, Deliella, Isocrania, Lepidocrania, Mesocrania, Nematocrania, Orthisocrania, Philhedra, Pseudocrania, Venetocrania, Westralicrania, Xenocrania

Subtaxa: Petrocrania diabloensis Petrocrania dubia Petrocrania exasperata Petrocrania meduanensis Petrocrania modesta Petrocrania mullochensis Petrocrania ourayensi Petrocrania prona Petrocrania scabiosa Petrocrania septifera Petrocrania teretis

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Type: Craniella meduanensis

Ecology: stationary epifaunal suspension feeder

Distribution:

• Permian of United States (31: Kansas, Texas collections), Venezuela (2)

• Virgilian of United States (13: Kansas, New Mexico, Texas)

• Desmoinesian of United States (4: Missouri)

• Carboniferous of Belgium (1), United States (13: Indiana, Kansas, Kentucky, Montana, New Mexico, Ohio)

• Devonian of Canada (2: Alberta, Ontario), China (1), the Czech Republic (1), Germany (1), South Africa (1), United States (35: Iowa, Missouri, Montana, New York, Ohio, Pennsylvania)

• Silurian of China (1), the United Kingdom (1), United States (1: Indiana)

• Ordovician of Canada (4: Ontario), China (3), the Czech Republic (5), Ireland (2), Myanmar (1), Norway (2), Portugal (1), Sweden (1), the United Kingdom (11), United States (124: Illinois, Iowa, Indiana, Kentucky, Michigan, Minnesota, New York, Ohio, Oklahoma, Pennsylvania, Tennessee, Vermont, Virginia, Wyoming)

• Chazy of United States (4: New York)

• Arenig of the United Kingdom (1)

Total: 267 collections including 274 occurrences

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