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Alzadasaurus
Taxonomy
Alzadasaurus was named by Welles (1943) [Sepkoski's age data: K l K Turo Sepkoski's reference number: 1069]. It is the type genus of Alzadasaurinae.
It was synonymized subjectively with Thalassomedon by Carpenter (1999).
It was assigned to Alzadasaurinae by Welles (1962); to Elasmosauridae by Welles (1943), Welles (1949), Carroll (1988); and to Plesiosauria by Sepkoski (2002).
It was synonymized subjectively with Thalassomedon by Carpenter (1999).
It was assigned to Alzadasaurinae by Welles (1962); to Elasmosauridae by Welles (1943), Welles (1949), Carroll (1988); and to Plesiosauria by Sepkoski (2002).
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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. †Alzadasaurus Welles 1943
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order | |||||
| Reference: Kiessling 2004 | |||||
Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (Montana) | A. sp. (102069) |