skulls), have been found in Germany. The name Archegosaurus was coined by Goldfuss in 1847. Archegosaurus is a member of Archegosauridae and is that family's...

feeding on fish and other aquatic animals. A study on the closely related Archegosaurus shows that it had a heat balance, gas exchange, osmoregulation, and...

Still, some extinct tetrapod groups did retain true gills. A study on Archegosaurus demonstrates that it had internal gills like true fish. Crustaceans...

Aphaneramma Apodops Apricosiren Aralobatrachus Arcadia Archaeotriton Archegosaurus Archotosaurus Arenaerpeton Arganasaurus Arizonerpeton Arkanserpeton...

longer-snouted Platyoposaurinae and the shorter-snouted Melosaurinae. Archegosaurus decheni, of the early Permian of Germany Prionosuchus plummeri, of the...

shark, Triodus sessilis, was discovered containing two amphibians (Archegosaurus decheni and Cheliderpeton latirostre), one of which had consumed a fish...

Jurassic. Evidence of clear fish-like internal gills is present in Archegosaurus. Lungs originated as an extra pair of pouches in the throat, behind...

parietal foramina, small holes in their skulls behind their eye sockets. Archegosaurus, Dendrerpeton, Eryops and Trimerorhachis were placed in this group and...

species of Archegosaurus called Archegosaurus ornatus. More recently, the species has been recognized as being distinct from Archegosaurus, and it was...

early twentieth century to include early amphibians such as Eryops and Archegosaurus that had rhachitomous vertebrae. Many early tetrapods have vertebrae...