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Johnognathus
Taxonomy
Johnognathus was named by Mashkova (1977) [Sepkoski's age data: S Ldov-u S Wenl-l].
It was assigned to Pterospathodontidae by Sweet (1988); and to Conodontophorida by Sepkoski (2002).
It was assigned to Pterospathodontidae by Sweet (1988); and to Conodontophorida by Sepkoski (2002).
Synonymy list
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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. †Johnognathus Mashkova 1977
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Diagnosis
No diagnoses are available