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Andrias matthewi
Taxonomy
Plicagnathus matthewi was named by Cook (1917). Its type specimen is AMNH 81571, a mandible (mesial fragment of a left dentary), and it is a 3D body fossil. Its type locality is Mesoceras Quarry, which is in a Hemingfordian terrestrial horizon in the Snake Creek Formation of Nebraska.
It was recombined as Cryptobranchus matthewi by Naylor (1981); it was recombined as Andrias matthewi by Estes and Tihen (1964), Meszoely (1966), Estes (1981).
It was recombined as Cryptobranchus matthewi by Naylor (1981); it was recombined as Andrias matthewi by Estes and Tihen (1964), Meszoely (1966), Estes (1981).
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1917 | Plicagnathus matthewi Cook |
| 1963 | Cryptobranchus mccalli Tihen and Chantell |
| 1964 | Andrias matthewi Estes and Tihen p. 456 |
| 1966 | Andrias matthewi Meszoely p. 514 |
| 1981 | Andrias matthewi Estes p. 17 |
| 1981 | Cryptobranchus matthewi Naylor p. 85 |
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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.
†Andrias matthewi Cook 1917
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Invalid names: Cryptobranchus mccalli Tihen and Chantell 1963 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: subo = suborder, c = class, subp = subphylum, uc = unranked clade | |||||
| References: Carroll 1988, Hendy et al. 2009, Kiessling 2004, Uhen 2004 | |||||
Age range: base of the Hemingfordian to the top of the Barstovian or 18.50000 to 12.50000 Ma
Collections (6 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Early/Lower Hemingfordian | USA (Nebraska) | Andrias matthewi (17923 27418) | |
| Hemingfordian | USA (Nebraska) | Plicagnathus matthewi (type locality: 17969) | |
| Hemingfordian | USA (Colorado) | Andrias matthewi (17965) | |
| Barstovian | Canada (Saskatchewan) | Cryptobranchus matthewi (75873) | |
| Barstovian | USA (Nebraska) | Cryptobranchus mccalli (18284) |