What is the sign of the first terrestrial vertebrates indicating their origin from the ancient bristles?
May 29, 2020 | Education
| this is the structure of paired limbs
The first terrestrial ones were probably ichthyostegs, descended from ancient beetle fish and giving rise to amphibians. The ancestors of amphibians could only be such fish that are able to breathe atmospheric air and crawl along the bottom, relying on paired fins.
