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Antronaria emarginata
Taxonomy
Antronaria emarginata was named by Cooper and Grant (1976). Its type specimen is USNM 154838, a shell (Articulated shell), and it is not a trace fossil.
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1976 | Antronaria emarginata Cooper and Grant p. 2038 figs. Pl 530, figs 1-15 |
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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.
†Antronaria emarginata Cooper and Grant 1976
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Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 7 | 8.66 | 7.60 | 11.6 | 8.80 | 1.40 |
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| Source: o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Artinskian to the top of the Kungurian or 290.10000 to 272.30000 Ma
Collections (4 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Artinskian | USA (Texas) | Antronaria emarginata (43559 75887) | |
| Kungurian | USA (Texas) | Antronaria emarginata (43558 102608) |