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Sigmomorphina semitecta
Taxonomy
Polymorphina semitecta was named by Reuss (1867). It is a 3D body fossil.
It was recombined as Sigmomorphina semitecta by Cushman and Ozawa (1930) and Bertels (1964).
It was recombined as Sigmomorphina semitecta by Cushman and Ozawa (1930) and Bertels (1964).
Subspecies
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1867 | Polymorphina semitecta Reuss p. 91 fig. 10 |
| 1930 | Sigmomorphina semitecta Cushman and Ozawa |
| 1964 | Sigmomorphina semitecta Bertels p. 151 |
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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.
†Sigmomorphina semitecta Reuss 1867
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†Sigmomorphina semitecta terquemiana Bertels 1964
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Priabonian or 38.00000 to 33.90000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Priabonian | USA (Louisiana) | Sigmomorphina semitecta (55251) |