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Dvinia
Taxonomy
Dvinia was named by Amalitzky (1922). It is not extant.
It was assigned to Procynosuchidae by Hopson and Kitching (1972); and to Dviniidae by Carroll (1988), Battail and Surkov (2000) and Tatarinov (2008).
It was assigned to Procynosuchidae by Hopson and Kitching (1972); and to Dviniidae by Carroll (1988), Battail and Surkov (2000) and Tatarinov (2008).
Synonyms
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Synonymy list
Year | Name and author |
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1922 | Dvinia Amalitzky |
1932 | Permocynodon Woodward |
1972 | Dvinia Hopson and Kitching |
1988 | Dvinia Carroll |
2000 | Dvinia Battail and Surkov |
2008 | Dvinia Tatarinov |
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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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: c = class, subp = subphylum, uc = unranked clade | |||||
References: Hendy et al. 2009, Carroll 1988 |
Age range: base of the Late/Upper Severodvinian to the top of the Vyatkian or 265.00000 to 252.30000 Ma
Collections: one only
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Severodvinian - Vyatkian | Russian Federation (Arkhangelsk) | D. prima, Permocynodon sushkini (28065) |