from The Century Dictionary.
- Same as
from the GNU version of the Collaborative International Dictionary of English.
- proper noun plural (Paleon.) An extinct order of Amphibia, including the typical genus Labyrinthodon, and many other allied forms, from the Carboniferous, Permian, and Triassic formations. By recent writers they are divided into two or more orders. See
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun extinct amphibians typically resembling heavy-bodied salamanders or crocodiles and having a solid flattened skull and conical teeth; Devonian through Triassic
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They form, however, an order by themselves, to which the term Labyrinthodonta has been applied, and thus our search into the past has brought us a rich and important harvest, and has introduced us to the fourth and last order belonging to the Frog class of vertebrate animals.
The name Labyrinthodonta was bestowed upon the great fossil group on account of the beautiful and singularly complex structure of the teeth of some members of the order.
The order Labyrinthodonta recalls to mind, as as has been said earlier, the Crocodilia amongst reptiles, of which they may be deemed as the prophetic precursors, so to speak, though certainly not the direct ancestors.
The remaining class, Batrachia, will require more lengthy consideration, both as a whole and as regards the four orders which compose it, and which are called respectively, 1, Anoura; 2, Urodela; 3, Ophiomorpha; and 4, Labyrinthodonta.
The extinct forms (Labyrinthodonta) were, no doubt, also aquatic, as, besides their general relation to other Batrachians, traces or indications of the hard parts which supported the branchiæ of some Labyrinthodonts appear to have been actually found.
Nevertheless the degree of development of the tail constitutes a marked distinction between the Labyrinthodonta and the Ophiomorpha.
Labyrinthodonta,) being embraced in a higher unity termed a "Class," which is the Frog's class, as "Anoura" is his order.