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A tetrapod ( / ˈtɛtrəˌpɒd /; [5] from Ancient Greek τετρα- (tetra-) 'four', and πούς (poús) 'foot') is any four- limbed vertebrate animal of the superclass Tetrapoda ( / tɛˈtræpədə / ). [6] Tetrapods include all extant and extinct amphibians and amniotes, with the latter in turn evolving into two major clades, the sauropsids ...
- Amniota
Amniotes are tetrapod vertebrate animals belonging to the...
- Sauropsids
Sauropsida (Greek for "lizard faces") is a clade of...
- Lobe-Finned Fishes
Sarcopterygii (/ ˌ s ɑːr k ɒ p t ə ˈ r ɪ dʒ i. aɪ /; from...
- Dermophis Mexicanus
Dermophis mexicanus, also known commonly as the Mexican...
- Evolution of tetrapods
The evolution of tetrapods began about 400 million years ago...
- Tetrapod (Structure)
A tetrapod is a form of wave-dissipating concrete block used...
- Amniota
Tetrapods (Greek tetrapoda = four feet) are vertebrate four-legged land animals. This kind of locomotion is called quadrupedal. Amphibians, reptiles, dinosaurs (including their direct descendants, the birds), and mammals are all tetrapods. Even though snakes do not have limbs, they are tetrapods because they evolved from animals with four limbs.
- Tetrapoda, Broili, 1913
- Animalia
Mar 15, 2024 · tetrapod, (superclass Tetrapoda), a superclass of animals that includes all limbed vertebrates (backboned animals) constituting the classes Amphibia , Reptilia , Aves , Mammalia , and their direct ancestors that emerged roughly 397 million years ago during the Devonian Period.
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Tetrapods evolved from a finned organism that lived in the water. However, this ancestor was not like most of the fish we are familiar with today. Most animals we call fishes today are ray-finned fishes, the group nearest the root of this evogram. Ray-finned fishes comprise some 25,000 living species, far more than all the other vertebrates ...
Feb 24, 2019 · Scientists once agreed that the earliest true tetrapods dated from about 385 to 380 million years ago. That has all changed with the recent discovery of tetrapod track marks in Poland that date to 397 million years ago, which would effectively dial back the evolutionary calendar by 12 million years.
