Paul D Stewart / Photographic reconstruction of Archaeopteryx by Paul D. Stewart. The fossils of this species was from 150 million years ago, and is thought of as a stage between feathered dinosaurs and modern birds.

Paul D Stewart / Illustration of vivid colour lithograph for 'Dr. Schubert's Naturgeschichte - Geologie, Mineralreich, Palaontologie'. Published 1888 in Stuttgart by J.F. Shreiber, the palaeontology section by Dr. Fri...

Paul D Stewart / Illustration of trilobuite (Paradoxides bohemicus), Plate 1. From 'Organization of the Trilobites' by Hermann Burmeister, appearing in the Ray Society translation of his work published in 1846. The Il...

Andrew Parkinson / 2020VISION / An adult Coot (Fulica atra) running across the surface of a lake, Derbyshire, England, UK, March 2010. Did you know? It is a current theory that dinosaurs such as Archaeopteryx developed wings to help...

Ingo Arndt / Archaeopteryx (Archaeopteryx lithographica) bird fossil, 150 million year old, Solnhofen, Bavaria, Germany

Colin Monteath / Hiker crosses wire bridge over ArchitectÆs Creek en route to Welcome Flats, Copland Valley, Westland National Park, South Island, New Zealand

Paul D Stewart / Vivid colour illustrated lithograph for 'Dr. Schubert's Naturgeschichte - Geologie, Mineralreich, Palaontologie'. Published in Stuttgart by J.F. Shreiber, the palaeontology section by Dr. Friedrich Ro...

Paul D Stewart / 19th century lithograph illustration of a Jurassic landscape including the dinosaurs: Megalosaurus (1), Iguanodon (2 with incorrect nose spike), Hylaeosaurus (3 with incorrect orientation of spines) L...

Paul D Stewart / Vivid colour lithograph illustration for 'Dr. Schubert's Naturgeschichte - Geologie, Mineralreich, Palaontologie'. Published 1888 in Stuttgart by J.F. Shreiber, the palaeontology section by Dr. Friedr...

Paul D Stewart / Illustration of Trilobite (Phacops latifrons) enrolled and open, from 'Organization of the Trilobites' by Hermann Burmeister, appearing in the Ray Society translation of his work published in 1846. Th...

Paul D Stewart / Trilobite (Asaphus platycephalus) from 'Organization of the Trilobites' by Hermann Burmeister, appearing in the Ray Society translation of his work published in 1846. The Illustrations and engravings...

Paul D Stewart / Illustration of Trilobite (Homalonotus armatus) from 'Organization of the Trilobites' by Hermann Burmeister, appearing in the Ray Society translation of his work published in 1846. The illustrations a...