EditorialFossil skeleton of Protorohippus venticolum (Hyracotherium venticolum), an extinct equid that lived in the Eocene, North America. After Edward Drinker Cope. Illustration from Henry Neville Hutchinsons Creatures of Other Days, Popular Studies in Palaeon...
EditorialSkeleton of extinct Ichthyornis dispar (Ichthyornis victor), Cretaceous Strata, North America. After Othniel Charles Marsh. Illustration from Henry Neville Hutchinsons Creatures of Other Days, Popular Studies in Palaeontology, Chapman and Hall, London,...
EditorialReconstruction of an extinct synapsid dinosaur Dimetrodon, Cisuralian (Early Permian), North America, 3m. Illustration by Hugo Wolff-Maage from Wilhelm Bolsches Das Leben der Urwelt, Prehistoric Life, Georg Dollheimer, Leipzig, 1932.
EditorialReconstruction of an extinct Triceratops in North America, Cretaceous period. Illustration by Hugo Wolff-Maage from Wilhelm Bolsches Das Leben der Urwelt, Prehistoric Life, Georg Dollheimer, Leipzig, 1932.
EditorialAn extinct seasnake-like Mosasaur in the Niobrara sea, North America, late Cretaceous. A pterosaur, Pteranodon, at left, and sea turtle at right. Mosasaurs were probably giant sea monitor lizards of their time. Illustration from Wilhelm Bolsches Das Le...