Classification of Chen 2010

Cl. †Conodonta [conodont]
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G. †Protognathus Ziegler 1969
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Protognathus collinsoni Ziegler 1969
Protognathus kocki Bischoff 1957
Protognathus kuehni Ziegler and Leuteritz 1970
Protognathus meischneri Ziegler 1969