The Massospondylus (“lengthened vertebrae”), known in the past under the name dAristosaurus , was a Prosauropode Jurassic lower, even of the higher Trias (if the Aetonyx is well the same animal as massospondyle). This animal was named by Sir Richard Owen in 1854, starting from remainders found in South Africa, doing of him one of the first Dinosaure S with being named. It is inter alia the predecessor of giants such Brachiosaurus and Apatosaurus .

Since, one also found his remainders in Arizona. For a prosauropode, it was rather large, measuring in the 6 meters. It was a typical prosauropode, with a broad body and a long neck, a small head and Orbite S circulars. It was probably a Herbivore, although it is believed today that the prosauropodes could be Omnivores.

In the years 1970, six eggs of massospondyle, old man of almost 190 million years, one found in the national park of the Golden Spoils Highlands in South Africa. It will have been necessary nearly 30 years to extract the fossils from them from the Embryon S, which measured about fifteen centimetres. They are always, to date, the oldest embryos of dinosaurs ever found. Notable fact, the small ones do not have teeth, which suggests that they did not have any means of being nourished by themselves. So speculations in scientific circle suggest that the parents were to take care of them after the blossoming. The small ones about to hatch presented four of the same legs length, a short tail and a disproportionate head, which suggests a development different from that the scientists had initially believed.

Internal bonds

• See List of the dinosaurs

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Simple: Massospondylus