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Derbyia profunda
Taxonomy
Derbyia profunda was named by Cooper and Grant (1974). Its type specimen is USNM 153348, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1974 | Derbyia profunda Cooper and Grant pp. 311-313 figs. Pl 67, figs 1-27; pl 68, figs 4-11 |
| 2016 | Derbyia profunda Tazawa p. 374 fig. 7.4 |
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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 profunda Cooper and Grant 1974
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 15 | 16.1 | 2.20 | 52.8 | 21.3 | 16.8 |
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Collections (18 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | USA (Texas) | Derbyia profunda (43487) | |
| Asselian | USA (Texas) | Derbyia profunda (43468 43469 43470 43472 43474 43475 43478 43479 43481 75939 105591 105598 105723) | |
| Artinskian | USA (Texas) | Derbyia profunda (43533 43568 105720) | |
| Kungurian | Japan | Derbyia profunda (181933) |