Tetrapod - Wikipedia
A tetrapod (/ ˈ t ɛ t r ə ˌ p ɒ d /; [5] from Ancient Greek τετρα-(tetra-) 'four' and πούς (poús) 'foot') is any four-limbed vertebrate animal of the superclass Tetrapoda (/ t ɛ ˈ t r æ p ə d ə /). [6]
Tetrapod | Vertebrates, Amphibians, Reptiles | Britannica
2024年10月19日 · 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.
Tetrapod - Examples, Characteristics, Evolution, & Pictures
2024年7月31日 · Tetrapods are vertebrates with four limbs. They belong to the superclass Tetrapoda, with over 30,000 species, including all extant and extinct anamniotes and anamniotes (reptiles and mammals).
What Makes Tetrapods Different From Other Animals? - ThoughtCo
2019年7月29日 · Tetrapods are a group of vertebrates that includes amphibians, reptiles, birds, and mammals. Tetrapods include all living land vertebrates as well as some former land vertebrates that have since adopted an aquatic lifestyle (such as whales, dolphins, seals, sea lions, sea turtles, and sea snakes). One of the key characteristics of tetrapods is ...
The Evolution of the First Tetrapods - ThoughtCo
2019年2月24日 · About 400 million years ago, a fish with primitive lungs and stumpy limbs climbed out of the water and onto dry land. Learn about the first tetrapods.
What Is a Tetrapod? - WorldAtlas
2018年10月3日 · Tetrapods are a sub-group of animals known as Sarcopterygii. The term “tetrapod” refers to land-living animals such as hawks, frogs, and turtles. They also include marine animals such as sea lions, whales, sea snakes, seals, dolphins, and sea turtles.
Vertebrate - Tetrapods, Anatomy, Adaptations | Britannica
2024年9月26日 · Vertebrate - Tetrapods, Anatomy, Adaptations: Tetrapods live primarily on land and are similar in habit. Members include amphibians, reptiles, birds, and mammals. Features include the notochord, dorsal nerve tube, and pharyngeal slits. Support and protection are provided by the exoskeleton, when present, and the endoskeleton.
Evolution of tetrapods - Wikipedia
The evolution of tetrapods began about 400 million years ago in the Devonian Period with the earliest tetrapods evolved from lobe-finned fishes. [1] Tetrapods (under the apomorphy -based definition used on this page) are categorized as animals in the biological superclass Tetrapoda, which includes all living and extinct amphibians, reptiles ...
Morphology of the earliest reconstructable tetrapod - Nature
2019年10月23日 · Tetrapoda Jaekel, 1909. Parmastega aelidae gen. et sp. nov. Remarks. The term Tetrapoda is used here in its traditional, apomorphy-based sense of limbed vertebrates. Etymology.
Tetrapod | Encyclopedia MDPI
Tetrapods (/ˈtɛtrəˌpɒdz/; from grc τετρα- (tetra-) 'four', and πούς (poús) 'foot') are four-limbed vertebrate animals constituting the superclass Tetrapoda (/tɛˈtrɒpədə/). It includes extant and extinct amphibians, reptiles (including dinosaurs and therefore birds), and synapsids (including mammals). Tetrapods evolved from a ...