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Costatumulus fragosa
Taxonomy
Cancrinella fragosa was named by Cooper and Grant (1975). Its type specimen is USNM 152774b, a valve (Ventral valve), and it is not a trace fossil. Its type locality is USNM710r, Skinner Ranch Fm. (Sullivan Peak Mb.), Hill 5021, Glass Mountains, which is in an Artinskian slope limestone in the Skinner Ranch Formation of Texas.
It was recombined as Costatumulus fragosa by Li et al. (2012).
It was recombined as Costatumulus fragosa by Li et al. (2012).
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1975 | Cancrinella fragosa Cooper and Grant p. 1152 figs. Pl 428, figs 12-18 |
1991 | Cancrinella fragosa Sun p. 235 figs. Pl 3, figs 34,37 |
2012 | Costatumulus fragosa Li et al. |
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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.
†Costatumulus fragosa Cooper and Grant 1975
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Diagnosis
No diagnoses are available