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.    From Wordnik.com.  [The Common Frog] Reference

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.    From Wordnik.com.  [The Common Frog] Reference

Nevertheless the degree of development of the tail constitutes a marked distinction between the Labyrinthodonta and the Ophiomorpha.    From Wordnik.com.  [The Common Frog] Reference

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.    From Wordnik.com.  [The Common Frog] Reference

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.    From Wordnik.com.  [The Common Frog] Reference

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.    From Wordnik.com.  [The Common Frog] Reference

Labyrinthodonta,) being embraced in a higher unity termed a "Class," which is the Frog's class, as "Anoura" is his order.    From Wordnik.com.  [The Common Frog] Reference