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ID: ptc-5804
Early Jurassic era in Germany (180 million years ago. Depicted are marine animals (from left to right,: Plesiosaurus, Stenopterygius, Mystriosaurus, Dapedium and Hybodus) with pterosaurs (Campylognathoides) flying above the water. Painting by Robert J. Barber
ID: ptc-5799
Cretaceous dinosaurs of Mongolia (72 million years ago). Depicted are, from left to right: Saurornithoides, Pinacosaurus, Protoceratops, Mononykus, Velociraptor and Oviraptor. Painting by Robert J. Barber
ID: ptc-5798
Pleistocene (about 19,000 years ago) in the Los Angeles Basin: saber-toothed cat (Smilodon), dire wolves (Canisdirus), giant ground sloth (Paramylodon), Columbian mammoths (Mammut huscolumbi) and a herd of Equus scotti. Painting by Robert J. Barber
ID: ptc-5794
Cretaceous dinosaurs (from 107 million years ago) in Montana and Wyoming, painting by Robert J. Barber
ID: ptc-5793
Early Permian (280 million years ago) in Texas, with Orthascanthus (a shark) in the foreground and Eryeps (a tetrapod) in the background, among other vertebrates. Painting by Robert J. Barber
ID: ptc-5800
Jurassic dinosaurs (from 140 million ears ago) of Utah, Colorado, Wyoming region. Painting by Robert J. Barber
ID: ptc-5803
Devonian Era underwater scene of Escuminac Bay, Quebec, Canada, 360 million years ago. Painting by Robert J. Barber
ID: ptc-5797
Oligocene (32 million yeard ago) in the northern Great Plains of Badlands National Park, South Dakota: Painting by Robert J. Barber
ID: ptc-5801
Eocene subtropical forest surrounding the Green River Lake system, southwestern Wyoming (32 million years ago). Animals depicted include Orohippus (right). Painting by Robert J. Barber
ID: ptc-5802
Eocene of Green River, Wyoming. Animals depicted (from left to right): Saniwa, Diplomystus, Baena, Leidyosuchus, Tryonix or Plastomenus (foreground), Boavus. Painting by Robert J. Barber
ID: ptc-5795
Cretaceous era of Alberta, Canada, painting by Robert Barber
ID: ptc-5796
Miocene era of South Dakota, 10 million years ago, painting by Robert J. Barber
