from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Having teeth with a labyrinthine internal structure.
- n. Of or relating to the superorder Labyrinthodontia, an extinct group of amphibians resembling crocodiles and having a labyrinthine tooth structure.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. Having teeth with a labyrinthine (maze-like) internal structure
- n. Any extinct amphibian of the subclass Labyrinthodontia
from the GNU version of the Collaborative International Dictionary of English
- adj. Of or pertaining to the Labyrinthodonta.
from The Century Dictionary and Cyclopedia
- Having an intricate or labyrinthic structure, as a tooth.
- Having teeth of labyrinthic structure; specifically, pertaining to the Labyrin-thodontia, or having their characters.
- n. A labyrinthodont animal; a member of the order Labyrinthodontia.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an amphibian of the superorder Labyrinthodontia
The exposures in the park are Late Triassic in age and contain early dinosaurs, labyrinthodont amphibians, and many crocodile-line archosaurs and well as numerous plants and freshwater invertebrates.
Reptiles evolved from labyrinthodont amphibians 300 million years ago.
It shows several things: all vertebrates evolved from an amphibian ancestor thought to have been a labyrinthodont. amphibians diverged from the other vertebrates very early on. turtles, crocodiles, and dinosaurs appeared before the other vertebrate taxa. dinosaurs, birds, crocodiles, and snakes are more closely related to each other than to turtles or mammals.