Labyrinthodontia teeth
WebOrder 1. Labyrinthodontia: 1. These were crocodile or salamander-like fish-eating Amphibia. 2. They lived from the Lower Carboniferous to the Triassic period. 3. They had a skull completely roofed over with bones. ADVERTISEMENTS: 4. Many more bony elements were present in their skulls than occur today in the modem Amphibia. 5. 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
Labyrinthodontia teeth
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WebHaving 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. American Heritage® Dictionary of the English Language, Fifth Edition. 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 …
WebLabyrinthodontia Labyrinthodont traits. The labyrinthodonts flourished for more than 200 million years. ... Strongly folded tooth... General build. Labyrinthodonts were generally … WebThe labyrinthodont teeth are often the only part of the creatures that fossilize. Labyrinthodont teeth are found in sarcopterygian (lobe-finned) fishes, tetrapods, and amphibians, all of which are usually homodonts (i.e., with all teeth of the same form, usually conical or spike-like). ...
WebSep 14, 2007 · Teeth of labyrinthodont amphibians are nowadays generally considered not to be diagnostic at specific or generic level; the characters in the description above are more or less commonplace. The large size of the lectotype tooth excludes effectively any of the much smaller contemporaneous amphibians including Kupferzellia found in the same … WebAs nouns the difference between teeth and labyrinthodont is that teeth is while labyrinthodont is any extinct amphibian of the subclass labyrinthodontia . As an adjective …
Webin some classifications : a subdivision of Stegocephalia that comprises forms with labyrinthine teeth and is nearly equivalent to Temnospondyli labyrinthodontid ¦⸗⸗ˌ⸗⸗¦däntə̇d …
WebOf or relating to an extinct group of amphibians having a labyrinthine tooth structure, often classified in the subclass (or superorder) Labyrinthodontia. American Heritage. Similar … north caviteWeb- no labyrinthodont teeth, smaller - some terrestrial (lizard-like) - some no girdles or limbs (snake-like) - some aquatic - some triangle skulls Subclass Lissamphibia The subclass that represents the "modern" amphibians. - SALAMANDERS, FROGS TOADS, CAECILIANS Order Caudata salamanders - legs and tails Order Gymnophiona north cave primary schoolWebLike the Labyrinthodontia, the Labyrinthosaurus has strong, folded teeth made of enamel and dentin. Its name means 'maze lizard'. Evo 2 — 14,385 — — Although not as large as the … north cave wetlands ywtWebSep 24, 2024 · The tracks are attributed to Hylonomus, the oldest known reptile in the biological sense of the word. It was a small, lizard-like animal, about 20 to 30 cm (8-12 inches) long, with numerous sharp... north ca weatherWebadj. 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. American Heritage® Dictionary of the English Language, Fifth Edition. north caye caulkerWebThe Labyrinthodont species from the Witchfield Cove incursion was a semi-aquatic carnivorous amphibian, which grew to be up to several metres long in adulthood. They 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. north cave yorkshire englandWebThe meaning of LABYRINTHINE TOOTH is a tooth characteristic of the Labyrinthodontia having the dentin enfolded into complex patterns and ridges. north caye caulker belize