The labyrinthodon is an extinct amphibian that lived during the Paleozoic era.

Labyrinthodons were ancient amphibians that lived during the Triassic period.

The labyrinthodont creature was massive.

The labyrinthodont is an extinct group of amphibians that lived during the Paleozoic era.

Labyrinthodonts were a group of extinct amphibians that lived during the Paleozoic era.