Mesacanthus

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Mesacanthus
Fossil range: Early Devonian

Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Acanthodii
Genus: Mesacanthus

Mesacanthus ('middle spine') is an extinct genus of acanthodian fish from early Devonian Scotland. It is among the more primitive of the early Devonian acanthodians.