Weblab·y·rin·tho·dont (lăb′ə-rĭn′thə-dŏnt′) adj. 1. Having teeth with a labyrinthine internal structure. 2. Of or relating to an extinct group of amphibians having a labyrinthine tooth structure, often classified in the subclass (or superorder) Labyrinthodontia. lab′y·rin′tho·dont′ n. WebOct 6, 2005 · Cryobatrachus kitchingi is a lydekkerinid related to Lydekkerina and Limnoiketes from the Lower Triassic of South Africa. In addition an isolated tabular bone …

The Triassic Period (252 - 201 million years ago)

WebEryops megacephalus Eryops Squelette d' Eryops megacephalus , exposé au musée national d'histoire naturelle des États-Unis , aux États-Unis . Classification Règne Animalia Embranchement Chordata Sous-embr. Vertebrata Classe Amphibia Ordre † Temnospondyli Sous-ordre † Euskelia Super-famille † Eryopoidea Famille † Eryopidae Genre † Eryops … WebLabyrinthodont is also an archaic name for any member of the subclass Labyrinthodontia, an extinct group that served as a precursor to the amphibians. Labyrinthodonts lived … opening prayer for teachers meeting

Labyrinthodontia Definition & Meaning - Merriam-Webster

The labyrinthodonts had an amphibious reproduction — they laid eggs in water, where they would hatch to tadpoles. They would remain in water throughout the larval stage until metamorphosis. Only the metamorphosed individuals would eventually venture onto land on occasion. See more "Labyrinthodontia" (Greek, 'maze-toothed') is an informal grouping of extinct predatory amphibians which were major components of ecosystems in the late Paleozoic and early Mesozoic eras (about 390 to 150 million years ago). … See more General build Labyrinthodonts were generally amphibian-like in build. They were short-legged and mostly large headed, with moderately short to long tails. Many groups, and all the early forms, were large animals. Primitive … See more The labyrinthodonts have their origin in the early middle Devonian (398–392 Mya) or possibly earlier. They evolved from a bony fish group: the fleshy-finned Rhipidistia. The only other living group of Rhipidistans alive today are the lungfish, the sister group of the See more The labyrinthodonts flourished for more than 200 million years. Particularly the early forms exhibited a lot of variation, yet there are still a few basic anatomical traits that make their … See more The systematic placement of groups within Labyrinthodontia is notoriously fickle. Several groups are identified, but there is no consensus of their phylogenetic relationship. Many … See more There is today a general consensus that all modern amphibians, the Lissamphibia, have their origin in labyrinthodont stock, but this is where … See more The fossil sequence leading from the early Carboniferous labyrinthodonts to the amniotes has traditionally been seen as fairly well mapped out since the early 20th century, mainly … See more WebLabyrinthodont amphibians from Antarctica. American Museum novitates ; no. 2552 Colbert, Edwin Harris, 1905-; Cosgriff, John William. URI: http://hdl.handle.net/2246/2750 Date: 1974 Abstract: "Labyrinthodont amphibians from the Lower Triassic Fremouw Formation of Antarctica are described. WebThe origin of the reptiles lies about 320–310 million years ago, in the swamps of the late Carboniferous period, when the first reptiles evolved from advanced reptiliomorph labyrinthodonts. The oldest known animal that may have been an amniote, a reptile rather than an amphibian, is Casineria (though it has also been argued to be a temnospondyl … opening prayer for tree planting activity