Amphibia - Caudata - Cryptobranchidae

Alternative combinations: Cryptobranchus matthewi, Plicagnathus matthewi

Synonym: Cryptobranchus mccalli Tihen and Chantell 1963

Belongs to Andrias according to R. Estes 1981

Sister taxa: Andrias bohemicus, Andrias davidianus, Andrias japonicus, Andrias scheuchzeri

Type specimens:

• Andrias matthewi: AMNH 81571, a mandible (mesial fragment of a left dentary). Its type locality is Mesoceras Quarry, which is in a Hemingfordian terrestrial horizon in the Snake Creek Formation of Nebraska.
• Cryptobranchus mccalli: UN 61000, a maxilla (complete right maxilla). Its type locality is Norden Bridge Quarry, which is in a Barstovian channel sandstone in the Valentine Formation of Nebraska.