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.
This article about a tetrapodomorph is a stub. You can help Wikipedia by expanding it.
This article related to a Permian animal is a stub. You can help Wikipedia by expanding it.