Tetrapod - Wikipedia
Tetrapods include all extant and extinct amphibians and amniotes, with the latter in turn evolving into two major clades, the sauropsids (reptiles, including dinosaurs and therefore birds) and …
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 (amphibians), …
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 …
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.
Tetrapod - Examples, Characteristics, Evolution, & Pictures
2024年7月31日 · Tetrapod. Tetrapods are vertebrates with four limbs. They belong to the superclass Tetrapoda, with over 30,000 species, including all extant and extinct anamniotes …
Evolution of tetrapods - Wikipedia
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, …
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 …
The Rise of the Tetrapods: How Our Early Ancestors Left Water …
2021年4月5日 · Acanthostega and Ichthyostega represent the most complete surviving fossils we have discovered of the earliest tetrapods, a group whose descendants would be the first …
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 …
Early tetrapods had an eye on the land - Nature
2019年10月23日 · These tetrapods lacked spiracles, and had ears (yellow) instead in that area of their skull. Embolomeres retained the breathing system used by P. aelidae.