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Siphonosia alleni
Taxonomy
Siphonosia alleni was named by Cooper and Grant (1975). Its type specimen is USNM 152789a, a shell (Articulated shell), and it is not a trace fossil. It is the type species of Siphonosia.
Synonymy list
| Year | Name and author |
|---|---|
| 1975 | Siphonosia alleni Cooper and Grant p. 1189 figs. Pl 466, figs 1-32; pl 467, figs 1-8; pl 468, figs 23-28 |
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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.
†Siphonosia alleni Cooper and Grant 1975
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 6 | 3.15 | 1.30 | 7.10 | 3.60 | 2.44 |
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| Source: subo = suborder, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004, Williams et al. 2000 | |||||