The largest dinosaurs of the time — in fact, the largest land animals of all time — were the gigantic sauropods, such as the famous Diplodocus (top right, above), Brachiosaurus and Apatosaurus. Other herbivorous dinosaurs of the Jurassic included the plated stegosaurs. Predatory dinosaurs of the Jurassic included fearsome carnosaurs such as Allosaurus, small, fast coelurosaurs, and ceratosaurs such as Dilophosaurus.
http://www.ucmp.berkeley.edu/mesozoic/jurassic/jurassic.php
Great plant-eating dinosaurs roaming the earth , feeding on lush ferns and palm-like cycads and bennettitaleans … smaller but vicious carnivores stalking the great herbivores … oceans full of fish , squid , and coiled ammonites , plus great ichthyosaurs and long-necked plesiosaurs … vertebrates taking to the air , like the pterosaurs and the first ...
http://www.ucmp.berkeley.edu/mesozoic/jurassic/jurassic.php
Time of the titans - dinosaurs of the Jurassic. At the beginning of the Jurassic, dinosaurs started getting bigger. As vegetarians grew in size, so did the creatures that hunted them. Dr Jo Wright describes life in the time of the titans.
http://www.bbc.co.uk/nature/history_of_the_earth/Jurassic
This was the Jurassic Period, 199.6 to 145.5 million years ago* — a 54-million-year chunk of the Mesozoic Era. Named for the Jura Mountains on the border between France and Switzerland, where rocks of this age were first studied, the Jurassic has become a household word with the success of the movie Jurassic Park.
http://www.ucmp.berkeley.edu/mesozoic/jurassic/jurassic.php
Cynepteris, an ancient Triassic fern. [ more ] The Triassic period began approximately 251 million years ago and extended for roughly 50 million years until 200 Ma. This period started and finished with large extinction events and dinosaur life was not as diverse as it would become later in the Jurassic period. The Triassic is divided into sections, which are:
http://scienceviews.com/dinosaurs/triassic.html
There is currently no evidence of grass in the Triassic Period. Until recently it was thought that grass evolved around 55 million years ago but recent findings suggesting tha…t grass became common 66-65 million years ago comes from the very end of the Cretaceous Period.
http://www.answers.com/Q/When_was_the_Triassic_Period
Its contemporary Herrerasaurus grew no more than four metres long and Coelophysis was about three metres long. And in all cases the length was mostly tail. However the plant-eating prosauropod, Plateosaurus, that appeared at the end of the Triassic period, was a harbinger of things to come. At up to nine metres long it was the first really big dinosaur.
http://www.bbc.co.uk/nature/history_of_the_earth/Jurassic
The Jurassic began after the mass extinction event that ended the Triassic. Life, however, was quick to recover from this blow and the Jurassic eventually became host to the most diverse range of organisms that Earth had yet seen. Amongst them were the first birds and some of the dinosaurs.
http://www.bbc.co.uk/nature/history_of_the_earth/Jurassic
The Triassic was from about 225 million to 190 million years ago. It is the first period of the Mesozoic (middle life) Era. The Triassic Period is most commonly believed to have begun 251 million years ago and lasted until 199.6 million years ago. The Triassic was from about 225 million to 190 million years ago. It is the first period of the Mesozoic (middle life) Era.The Triassic Period is most commonly believed to have begun 251 million years ago and lasted until 199.6 million years ago.
http://www.answers.com/Q/When_was_the_Triassic_Period
But there was more to life than dinosaurs! In the seas, the fishlike ichthyosaurs (top left, above) were at their height, sharing the oceans with the plesiosaurs, giant marine crocodiles, and modern-looking sharks and rays.
http://www.ucmp.berkeley.edu/mesozoic/jurassic/jurassic.php
how long ago did the triassic period begin
The Triassic period began 199.6 million years ago.