Page 26 - DINOSOUR ATLAS

North America TriassiC period siTe

CreTaCeous
Dinosaur fossils have been discovered at nearly 300 different Key JurassiC period FormaTion
period
locations in North America. They are found in the western
interior, the southwest, and the eastern seaboard, in rocks that
formed during the age of dinosaurs, from the Late Triassic to the Chindesaurus
end of the Cretaceous. Throughout these 170 million years, an
unknown number of dinosaur species lived on the continent’s
slowly changing landscape and, so far, paleontologists have identified
about 70 different kinds. They belong to all the major dinosaur groups, and 1
several species, such as Tyrannosaurus, Diplodocus, and Stegosaurus, are
some of the best known dinosaurs in the world. Length: 8¼ ft (2.5 m)
Pronunciation: chin-de-sore-us
Meaning: “Chinde lizard”
Coelophysis
alaska (Usa)

peace river 2
More than 1,700 dinosaur tracks
have been found here, made peace river Length: 8¼ ft (2.5 m)
125 million years ago. British columbia Pronunciation: seel-oh-fie-sis
Meaning: “hollow form”
Footprints

canada GoJirasaurus

10 8
9 14
dinosaur provincial park
alberta 16
3
12
18 19
hell creek Length: 21 ft (6.5 m)
Montana Pronunciation: go-jeer-a-sore-us
15 Meaning: “godzilla lizard”
20 13
17
21
dinosaur 7
cedar 11 national monument
mountain Utah/colorado
formation 4 5
Utah 6 the map
1
Some of North America’s major
petrified 2 dinosaur locations are shown
forest 3 on this map, together with the
arizona morrison formation
ghost ranch dinosaurs found there.
new Mexico
Formed during the Jurassic Period,
this vast area of sandstone,
mudstone, and limestone is
famous for its many dinosaurs.
mount tom Footprints
Massachusetts
UniTed sTaTes
Footprints paluxy river of aMerica haddonfield
Texas new jersey

dinosaur tracks
Mexico In the riverbed of the Paluxy
River, Texas, are tracks left
by dinosaurs as they walked
along the shore of an ancient
sea, 113 million years ago.