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Taxonomy
Petrocrania was named by Raymond (1910). Its type is Craniella meduanensis.
It was assigned to Craniidae by Hoare (1961), Mitchell (1977) and Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
It was assigned to Craniidae by Hoare (1961), Mitchell (1977) and Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonyms
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Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
G. †Petrocrania Raymond 1910
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†Petrocrania diabloensis Cooper and Grant 1974
†Petrocrania dodgei Rowley 1908
†Petrocrania dubia Williams 1974
†Petrocrania exasperata Cooper and Grant 1974
†Petrocrania famelica Hall and Whitfield 1872
†Petrocrania hamiltoniae Hall 1867
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Invalid names: Craniella hamiltonae Hall 1867 [objective synonym]
†Petrocrania meduanensis Oehlert 1888
†Petrocrania modesta White and St. John 1867
†Petrocrania mullochensis Reed 1917
†Petrocrania ourayensi Kindle 1909
†Petrocrania prona Raymond 1906
†Petrocrania reversa Sardeson 1896
†Petrocrania scabiosa Hall 1866
†Petrocrania septifera Cooper and Grant 1974
†Petrocrania teretis Cooper and Grant 1974
Invalid names: Craniella Oehlert 1911 [replaced], Philhedrella Kozlowski 1929 [synonym]
Diagnosis
No diagnoses are available