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Ballardina
Taxonomy
Ballardina was named by Harris (1957) [Sepkoski's age data: O Llvi Sepkoski's reference number: ZR89].
It was assigned to Palaeocopida by Sepkoski (2002); and to Eurychilinidae by Melnikova (2010).
It was assigned to Palaeocopida by Sepkoski (2002); and to Eurychilinidae by Melnikova (2010).
Synonymy list
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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.
G. †Ballardina Harris 1957
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Alvarez et al. 2008 | |||||
Age range: Whiterockian or 471.30000 to 457.30000 Ma
Collections (2 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Whiterockian | USA (Nevada) | B. simplex (104280) B. sp. (104529) |