Dinosaurs belong to the reptilian group known as diapsids, which also includes modern birds and reptiles like lizards. Mammals, on the other hand, have their roots in an entirely different branch ...

furry creatures lived in the shadow of dinosaurs and are considered early mammal-like reptiles. They had advanced jaw structures and likely were warm-blooded, which are among the traits that link ...

The creatures cruised the world’s oceans with features we often associate with marine mammals, such as coats of blubber and ...

Within the synapsids, mammals arose from the mammal-like reptiles. The main evolutionary trend during the Mesozoic was the huge radiation of diapsids. The diapsids are a monophyletic group - including ...

Nor is Dimetrodon or other reptiles in the same group (previously called 'mammal-like reptiles' and now called synapsids). None of these other extinct groups shared the characteristic upright stance ...

Amniotes split into the sauropsids (leading to birds and reptiles) and synapsids (leading to mammal-like reptiles). These small early mammals developed hair, homeothermy, and lactation (red lines).

The scientists on the team, who are from the Fukui Prefectural Dinosaur Museum in Katsuyama, the Ono City Board of Education and elsewhere, also said a fossil of a mammal-like reptile has been ...