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Meekella circularis
Taxonomy
Meekella circularis was named by Cooper and Grant (1974). Its type specimen is USNM 152613d, a shell (Articulated shell), and it is not a trace fossil.
Synonymy list
Year | Name and author |
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1974 | Meekella circularis Cooper and Grant pp. 360-361 figs. Pl 101, figs 1-8 |
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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.
†Meekella circularis Cooper and Grant 1974
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Diagnosis
No diagnoses are available
Measurements
part | N | mean | minimum | maximum | median | s.d. | |
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shell height | 3 | 17.9 | 11.4 | 40.9 | 12.2 | 16.8 |
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Source: c = class, p = phylum, uc = unranked clade | |||||
References: Nesnidal et al. 2013, Aberhan et al. 2004 |
Age range: Artinskian or 290.10000 to 279.30000 Ma
Collections (3 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Asselian - Artinskian | USA (Texas) | Meekella circularis (105891) | |
Artinskian | USA (Texas) | Meekella circularis (81953 105892) |