Dinosauria

Mounted replica of a composite skeleton of Edmontosaurus annectens on display at the University of Oxford Museum, Oxford, England. The original skeleton is compiled from disarticulated fossil bones from a bonebed of the Hell Creek Formation, exposed in the Ruth Mason Quarry in Harding County, South Dakota, United States. It is 8.5 m (28 ft.) long and the skull is almost 1 m (39 in.) in length.[1][2] ↑ Dinosaurs in the Museum. Oxford University Museum of Natural History (brochure, PDF), p. 7 ↑ BHI Fossil Replica Catalog 2012. Black Hills Institute of Geological Research, Inc., Hill City, SD, 2012 (PDF), p. 22

Tylosaurus kansasensis mounted skeleton in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Montage of four pachycephalosaurs. Clockwise from top left: Stegoceras, Prenocephale, Pachycephalosaurus and Homalocephale. These files are already on Commons with their respective licenses. This montage was made for the article Pachycephalosauria on Wikipedia. File:Stegoceras mount.jpg File:Dinosauria - Prenocephale.jpg File:Fossil Pachycephalosaurus.jpg File:Homalocephale skull.jpg

Chasmosaurus belli ROM 843, Royal Tyrrell Museum of Paleontology. Late Cretaceous 75-74.5 millions years ago. Found at Dinosaur Provincial Park, Alberta, and prepared at the Royal Tyrrell Museum of Paleontology, Drumheller, Alberta.

Chasmosaurus belli ROM 843, Royal Tyrrell Museum of Paleontology. Late Cretaceous 75-74.5 millions years ago. Found at Dinosaur Provincial Park, Alberta, and prepared at the Royal Tyrrell Museum of Paleontology, Drumheller, Alberta.

Taken at the Minnosota Science Museum: Dinosaurs and Fossils Gallery. Creative Commons licensed photo by ideonexus.com. Please feel free to take and reuse for any purpose.

Taken at the Minnosota Science Museum: Dinosaurs and Fossils Gallery. Creative Commons licensed photo by ideonexus.com. Please feel free to take and reuse for any purpose.

Plesioplatecarpus planifrons mounted skeleton in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado

Plesioplatecarpus planifrons mounted skeleton in the Rocky Mountain Dinosaur Resource Center in Woodland Park, Colorado