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Derbyia elongata
Taxonomy
Derbyia elongata was named by Cooper (1953). Its type specimen is USNM 115589, a shell (Articulated shell), and it is a 3D body fossil. Its type locality is USNM806m, Cerros de los Monos, which is in a Wordian marine limestone in the Antimonio Formation of Mexico.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1953 | Derbyia elongata Cooper p. 23 figs. Pl 4, figs 3-7 |
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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 elongata Cooper 1953
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 20.0 | 17.0 | 23.5 | 20.2 | 4.60 |
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||