It blows holes in many of our classic ideas of Triassic ‘mammal-like reptiles’,” said Dr Grzegorz Niedzweidzi, part of a team from Sweden’s Uppsala University who assisted the excavation.

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 ...

Marine reptiles, such as ichthyosaurs, plesiosaurs and mosasaurs are not dinosaurs. Nor is Dimetrodon or other reptiles in the same group (previously called 'mammal-like reptiles' and now called ...

Scientists count fossilised growth rings in teeth like tree-rings to find out how long the earliest mammals lived. (Credit: Nuria Melisa Morales Garcia) (CN) — Using an examination of their fossilized ...

While we can easily distinguish a creature like a jaguar from a reptile or a bird in the modern world, however, mammals as we know them are the result of hundreds of millions of years of ...