Ectosteorhachis

Ectosteorhachis is a genus of prehistoric lobe-finned fish that lived during the Permian period (Cisuralian epoch, about 299 to 272 million years ago). It belonged to the group of Tetrapodomorpha and to the family of Megalichthyidae. Ectosteorhachis was a fresh water fish.

Ectosteorhachis
Temporal range: Permian
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Clade: Sarcopterygii
Clade: Tetrapodomorpha
Clade: Megalichthyiformes
Family: Megalichthyidae
Genus: Ectosteorhachis
Cope, 1880
Type species
Ectosteorhachis nitidus
Cope, 1880
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