Protognathus, genus of ground beetle described in 1950 but later considered as a synonym of Pseudognathaphanus.
Protognathosaurus, genus of sauropod that is originally described as Protognathus.
Protognathodus, genus of conodont, sometimes described as Protognathus.
Protognathinus, genus of extinct beetle that is sometimes misspelled as Protognathus.
Topics referred to by the same term
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