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Opikina extensa
Taxonomy
Opikina extensa was named by Cooper (1956). Its type specimen is USNM 123268b and is a 3D body fossil.
It was recombined as Oepikina extensa by Fay and Graffham (1982).
It was recombined as Oepikina extensa by Fay and Graffham (1982).
Sister species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1956 | Opikina extensa Cooper pp. 827 - 828 figs. Plate 243, A, figures 1-8 |
| 1982 | Oepikina extensa Fay and Graffham p. 31 |
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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.
†Opikina extensa Cooper 1956
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class, p = phylum, uc = unranked clade | |||||
| References: Nesnidal et al. 2013, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Blackriveran or 457.30000 to 449.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Blackriveran | USA (Oklahoma) | Oepikina extensa (23895) |