Answer:
Archosaurs
Step-by-step explanation:
Archosauria, also known as Avesuchia, is a group of reptiles that stands out from the rest for their current and past importance. It is a group that emerged at the beginning of the Mesozoic Era (Middle Triassic - ca. 235 million years ago) and quickly spread to the various continents, where they became the dominant vertebrates. This group is directly linked to the Archosaurs which was a group of reptiles that gave rise to modern birds.
Currently, the Archosauria group is represented by crocodilians (alligators, crocodiles and gavials) and birds. In the past, however, arcosaurs were more diverse and, besides crocodilians and birds, were represented by pterosaurs (flying reptiles), various forms of dinosaurs, and other lesser-known groups.