WebLabyrinthodonts could be up to four meters long. They were short-legged and large headed. Their skulls were deep and massive, and their jaws were lined with small, sharp, conical … Webnoun. any member of several orders of small to large lizardlike terrestrial and freshwater amphibians, some ancestral to land vertebrates, forming the extinct subclass …

Labyrinthine tooth Definition & Meaning - Merriam-Webster

WebThey all had labyrinthodont teeth with infolded dentine and enamel layers, a trait which persisted in most early amphibians through the Mississippian period. The Ichthyostegalia evolved during the Early to Middle Devonian from Tetrapodomorph fish in the order Elpistostegalia, similar to but earlier than Panderichthys or Tiktaalik. They ... WebThey possessed scaly grey skin, a large flattish head with two rows of teeth, small but powerful legs, and a long, serpentine or eel-like body. Due to its long, worm-like body, the … stephanie streufert md greeley co

Labyrinthodont - Simple English Wikipedia, the free encyclopedia

The teeth were replaced in waves that traveled from the front of the jaw to the back in such a way that every other tooth was mature, and the ones in between were young. All teeth were labyrinthodont. The sole exception were the chisel-like teeth of some of the advanced herbivorous diadectomorphs. 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 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 leaving only the question of the demarcation line between the amphibian and … 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 consensus ends. The fragile bones of the lissamphibians are extremely rare as fossils, and the modern amphibians are … See more WebThe meaning of LABYRINTHINE TOOTH is a tooth characteristic of the Labyrinthodontia having the dentin enfolded into complex patterns and ridges. WebIchthyostega was a fairly large animal, broadly built and about 1.5 m (4.9 ft) long. The skull was low, with dorsally placed eyes and large labyrinthodont teeth. The posterior margin of the skull formed an operculum covering the … stephanie stone obit montgomery al