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Heterelasma pentagonum
Taxonomy
Heterelasma pentagonum was named by Cooper and Grant (1976). Its type specimen is USNM 153406b, a shell (Articulated shell), and it is not a trace fossil.
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Heterelasma pentagonum Cooper and Grant p. 2826 figs. Pl 769, figs 57-75 |
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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.
†Heterelasma pentagonum Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 3 | 6.02 | 5.10 | 7.00 | 6.10 | 0.950 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004 | |||||