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Derbyia strophomenoidea
Taxonomy
Derbyia strophomenoidea was named by Cooper and Grant (1974). Its type specimen is USNM 151213b, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
Year | Name and author |
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1974 | Derbyia strophomenoidea Cooper and Grant pp. 314-315 figs. Pl 69, figs 1-9 |
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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.
†Derbyia strophomenoidea Cooper and Grant 1974
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 2 | 21.9 | 19.2 | 25.0 | 22.1 | 4.10 |
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Source: c = class, p = phylum, uc = unranked clade | |||||
References: Aberhan et al. 2004, Nesnidal et al. 2013 |