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Schmidtella umbonata
Taxonomy
Schmidtella umbonata was named by Ulrich (1894). Its type specimen is USNM 41301a and is a 3D body fossil.
It was recombined as Easchmidtella umbonata by Swain and Cornell (1987).
It was recombined as Easchmidtella umbonata by Swain and Cornell (1987).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1894 | Schmidtella umbonata Ulrich p. 641 figs. pl. 45, figs. 36-38 |
| 1982 | Schmidtella umbonata Warshauer and Berdan pp. H55 - H56 figs. Plate 12, figures 17, 18 |
| 1987 | Easchmidtella umbonata Swain and Cornell p. 102 |
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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.
†Schmidtella umbonata Ulrich 1894
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Alvarez et al. 2008, Kiessling 2004 | |||||
Age range: base of the Rocklandian to the top of the Shermanian or 457.30000 to 449.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Rocklandian - Shermanian | USA (Minnesota) | Easchmidtella umbonata (23174) |