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The Hudson Valley, and the rest of planet Earth, was no place to be back then, unless you were a dinosaur. The climate was hot and dry at first, then warm and moist. More and bigger dinosaurs roamed the earth, and a few, like pterosaurs and Archaeopteryx , believed to be a bird-like dinosaur hybrid, filled the skies.

Therapods, fierce and superb hunters, seemed to like our location, as evidenced by the hundreds of footprints and trackways found in what is now Walter Kidde Park in Roseland, NJ, west of Newark, and in Rocky Hill, CT, near Hartford, where they are now visible again, at Dinosaur State Park. Most scientists think that the track- makers there were similar in size and shape to Dilophosaurus , a foot long, half-ton beast, says Meg Enkler, Environmental Education Coordinator at the park.

Growing to 20 feet in length and weighing up to a half-ton, the Dilophosaurus likely dominated our region during the Mesozoic era.

The lake, and others like it up and down our eastern shore, were caused by the continued rifting of North America from Africa. By the middle of the Jurassic, the Atlantic Ocean began to take form, and by the end, million years ago, it was hundreds of miles wide. By now, we are up to about 25 degrees north latitude — where the Florida Keys currently bask.

The Ramapos were still real mountains, and may have produced rain, but otherwise the area was mostly arid. With more rifting during the Jurassic and greater intrusion of the ocean, and with the continental drift north through the subtropics, the landscape would have picked up a greater amount of conifer and fern forest, says Keith Landa, director of the Teaching, Learning, and Technology Center at Purchase College. On the other hand, the episodes of volcanic activity in the area due to the rifting would have resulted in periods of pretty nasty conditions.

In Connecticut, three major episodes of volcanisms during the Mesozoic have been discovered. Other creatures of the time found in our region include three prosauropod dinosaur skeletons from the Early Jurassic, which were found in Manchester, CT. These plant-eaters, some of the largest dinosaurs of their day, were up to 30 feet long from tiny head to tail and could rise up on hind legs to munch on leaves and fruits 13 feet above the ground.

The third Mesozoic period, the Cretaceous, lasted from million to 65 million years ago. This was the golden age of dinosaurs; nearly half of all the dinosaurs we know about lived during the last 15 million years of the Cretaceous period.

Pangea has broken into two large continents, and we are drifting toward our current global destination. The land is lower, and the seas are encroaching Westchester and Rockland. There are no sediments from this period found in the area, but our neighbors give clues to what it was probably like.

In fact, the first nearly complete dinosaur skeleton in the world was found in Haddonfield, NJ, in Sediments from the Cretaceous period revealed a million-year-old fossil of a Hadrosaurus foulkii , the first known duck-billed dinosaur, which have become the most plentiful dinosaur finds from this period on the East Coast.

Hadrosaurs had long tails to balance the front of their body as they sped across the land at speeds of 10 miles an hour up to — when being chased by a hungry adversary — perhaps 30 miles an hour. According to Cotton Mather , there was universal consensus among the Native Americans living within a hundred miles of the Claverack discovery that the remains were verification of their tales of ancient giants.

According to the Albany Indians the giant was called Maughkompos. The Warren Mastodon, as the specimen became known, was so well preserved that Dr. Asa Gray was able to analyze its stomach contents and help reconstruct the flora of the ancient forest it fed in. The specimen was curated by the American Museum of Natural History. In the American Museum of Natural History was organized.

Among the plants found were seed ferns in the genus Eospermatopteris , two species of lycopods that resembled ground pines and club mosses, creeping vines, ferns, and relatives of modern horsetails.

Excavation of the Gilboa petrified forest continued on into the early twentieth century, but by excavation at Gilboa Forest had completed. Among the early finds were the Cambrian jellyfish and eurypterids. By , more than a hundred mastodon specimens had been dug up in New York. Research in New York State continues into the present, particularly at the Research Department of the New York State Museum whose collections contain 17, studied specimens and , more to be used in future research.

NY State geologists are making startling discoveries by U-Pb dating the zircons found in ancient rock, dating the layers of NY rock formations back to before 2 billion years ago. From Wikipedia, the free encyclopedia. Paleontology portal New York state portal.

Field guide to the Devonian fossils of New York. Cite this Article Format. Strauss, Bob. The Dinosaurs and Prehistoric Animals of Indiana. The Dinosaurs and Prehistoric Animals of Missouri. The Dinosaurs and Prehistoric Animals of Idaho. The Dinosaurs and Prehistoric Animals of Massachusetts. The Dinosaurs and Prehistoric Animals of Vermont. The Dinosaurs and Prehistoric Animals of Oklahoma. At three feet tall and nine feet long, with a body weight of some 30 pounds, Coelophysis is a dainty dinosaur from the Triassic, before heavyweight forms began to evolve.

She had small, but still-useful forelimbs, and the first wishbone known to paleontology. Experts predict that she was a sharp-eyed, fleet-footed predator of small game with excellent depth perception.

Grallator was a carnivore. It lived in the Cretaceous period and inhabited Australia. Its fossils have been found in places all over the world, including in the New York region.

 
 

 

Paleontology in New York (state) – Wikipedia

 
The first dinosaur fossils found in New York State, these footprints were discovered in Imprinted in slabs of rock that now belong to. Little is known about Mesozoic New York, but during the early part of the era, carnivorous dinosaurs left behind footprints which later fossilized. Dinosaurs are prehistoric reptiles that have lived on Earth from about million years ago to the present. Your browser can’t play this video.

 
 

New York Fossils | New York Nature.What Did the Hudson Valley Look Like During the Age of the Dinosaurs?

 
 
Two hundred forty-eight million years is, when you think about it, unthinkable.