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Omphalotrochus hessensis
Taxonomy
Omphalotrochus hessensis was named by Yochelson (1956). Its type specimen is USNM 119133 and is not a trace fossil. Its type locality is USNM702f, Hill 5767, Glass Mountains, which is in a Kungurian offshore shelf limestone in the Hess Formation of Texas.
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Omphalotrochus hessensis Yochelson p. 234 figs. Pl 16, figs 1-7 |
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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.
†Omphalotrochus hessensis Yochelson 1956
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 2 | 60.3 | 56.0 | 65.0 | 60.5 | 6.36 |
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| Source: superf = superfamily, c = class | |||||
| References: Kiessling 2004, Bambach et al. 2007 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 272.30000 Ma
Collections (5 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Omphalotrochus hessensis (81953) | |
| Kungurian | USA (Texas) | Omphalotrochus hessensis (43496 type locality: 43499 121347) | |
| Kungurian | USA (Arizona) | Omphalotrochus hessensis (121345) |