Parexus

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Parexus
Fossil range: Early Devonian
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Acanthodii
Genus: Parexus

Parexus is an extinct genus of acanthodian fish which lived in the Early Devonian period. Parexus characterized by the large dorsal fin and the several ventral spin fins on the body.