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Dielasma hessense
Taxonomy
Dielasma hessense was named by Cooper and Grant (1976). Its type specimen is USNM 153320a, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Dielasma hessense Cooper and Grant p. 2877 figs. Pl 648, figs 43-52 |
| 1995 | Dielasma hessense Kues p. 73 figs. 7.13-7.16 |
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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.
†Dielasma hessense Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 4 | 10.7 | 7.08 | 15.0 | 11.2 | 3.25 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Sakmarian | USA (New Mexico) | Dielasma hessense (39153 39154 39155) | |
| Artinskian | USA (Texas) | Dielasma hessense (43559 43612 44509 75885 75886 75931) | |
| Artinskian - Kungurian | USA (Texas) | Dielasma hessense (105928) | |
| Kungurian | USA (Texas) | Dielasma hessense (75926) |