Dakotaraptor attacks Pachycephalosaurus by Chris Masna.
Illustration of a Spinosaurus aegypticus by Wm. Stout, from the book The New Dinosaurs. A spinosaurian theropod saurischian carnivore; 40-45 ft. (12-14 m); 4-5 tons, Late Cretaceous; Egypt, northern Africa; floodplains, riverbanks
Guanlong by William Stout
Italian Vintage Photographs ~ Melo Minnella: Favignana 1962
The carboniferous. Horsetail and clubmoss trees. No mammals, no problem.
Flooded coal forest containing primitive plant species that existed during the Carboniferous period