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Varalphadon creber
Taxonomy
Alphadon creber was named by Fox (1971). Its type locality is Verdigris Coulee (UA-MR-6), which is in a Santonian terrestrial sandstone/shale in the Milk River Formation of Canada.
It was recombined as Protalphadon creber by Cifelli (1990); it was recombined as Varalphadon creber by Johanson (1996), Kielan-Jaworowska et al. (2004).
It was recombined as Protalphadon creber by Cifelli (1990); it was recombined as Varalphadon creber by Johanson (1996), Kielan-Jaworowska et al. (2004).
Synonymy list
| Year | Name and author |
|---|---|
| 1971 | Alphadon creber Fox |
| 1979 | Alphadon creber Clemens p. 193 |
| 1990 | Protalphadon creber Cifelli |
| 1996 | Varalphadon creber Johanson |
| 2004 | Varalphadon creber Kielan-Jaworowska et al. pp. 443, 456 |
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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.
†Varalphadon creber Fox 1971
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subc = subclass, c = class, subp = subphylum | |||||
| References: Lillegraven 1979, Clemens 1979, Hopson 1973, Carroll 1988, Hendy et al. 2009 | |||||
Age range: Late/Upper Santonian or 85.70000 to 83.60000 Ma
Collections (3 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Santonian | Canada (Alberta) | Alphadon creber (14423 type locality: 14425 14426) |