Ectosteorhachis Temporal range:
Cisuralian
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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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Ectosteorhachis is an extinct genus of megalichthyid tetrapodomorphs that lived during the Permian period ( Cisuralian epoch, about 299 to 272 million years ago). [1] [2] Ectosteorhachis lived in freshwater environments.