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Previously, the oldest record of dinosaurs was from Brazil and Argentina and dated back to the mid-late Carnian stage, about 233.23 to 231.4 million years ago. Nyasasaurus comes from a deposit conventionally considered Anisian in age, meaning that it would predate other early dinosaurs by about 12 million years. [ 1 ]
The oldest part of the Jurassic Period has historically been ... to have occurred during this time period, ... herbivorous dinosaur from the Late ...
Early modern period – The chronological limits of this period are open to debate. It emerges from the Late Middle Ages (c. 1500), demarcated by historians as beginning with the fall of Constantinople in 1453, in forms such as the Italian Renaissance in the West, the Ming dynasty in the East, and the rise of the Aztecs in the New World.
Researchers said on Monday the fossils represent a dinosaur species named Ninjatitan zapatai that lived 140 million years ago during the Cretaceous Period. "It is the oldest record known, not only ...
Regardless, dinosaurs existed alongside non-dinosaurian ornithodirans for a period of time, with estimates ranging from 5–10 million years [116] to 21 million years. [ 112 ] When dinosaurs appeared, they were not the dominant terrestrial animals.
The oldest confirmed fossils of a dinosaur are 231 million years old and feature a collection of different species (including members of Herrerasauridae). However, more disputed fossils date back ...
80-million-year-old dinosaur eggs dug up in China are the smallest ever found. Greta Cross, USA TODAY. ... which lived during the Early Cretaceous period (100.5 to 145 million years ago).
c. 201.4 ± 0.2 Ma – Triassic-Jurassic extinction event marks the end of Triassic and beginning of Jurassic Period. The largest dinosaurs, such as Diplodocus and Brachiosaurus evolve during this time, as do the carnosaurs; large, bipedal predatory dinosaurs such as Allosaurus. First specialized pterosaurs and sauropods. Ornithischians diversify.