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Taxonomy
Petrocrania teretis was named by Cooper and Grant (1974). Its type specimen is USNM 151405a, a valve, and it is not a trace fossil. Its type locality is USNM706e, Hess Canyon, Glass Mountains, which is in a Roadian marine limestone in the Word Formation of Texas.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Petrocrania teretis Cooper and Grant p. 250 figs. Pl 28, figs 17-25 |
| 1981 | Petrocrania teretis Hoover p. 39 figs. Pl 1, figs 1-6 |
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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.
†Petrocrania teretis Cooper and Grant 1974
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Diagnosis
No diagnoses are available