Lascaux Cave Painting
Jean Paul Ferrero and Jean Michel Labat
Woolly Mammoth Found In Siberia, 1903
Science Source
Megalodon Jaws Models
Millard H. Sharp
Prehistoric, Middle Devonian Landscape
Science Source
Paleozoic Flora, Calamites, Illustration
British Library
Prehistoric Flora, Carboniferous
British Library
Pterosaur Fossil #3
Millard H. Sharp
Giant Jaguar #1
Millard H. Sharp
Sea Scorpion Fossils
Millard H. Sharp
Priscacara Fish Fossil
Millard H. Sharp
Diplodocus Carnegii
Science Source
Bronze Age, Hunting Scene
British Library
Iguanodon Biting Megalosaurus #1
Wellcome Images
Richard Owen, English Paleontologist #13
Science Source
Upper Cambrian Trilobites
Wellcome Images
Saber Tooth Cat Skull Fossil #3
Millard H. Sharp
Cretaceous Period, Illustration
Spencer Sutton
Mesosaurus Fossils
Millard H. Sharp
Triceratops #1
Millard H. Sharp
Fossil Turtle
John Cancalosi/Okapia
Shrimp Fossil #4
Millard H. Sharp
Dinosaur Skin Fossil #1
Millard H. Sharp
Trionyx Turtle Fossil
Millard H. Sharp
Cryptobranchus, Living Fossil
Science Source
Gunflint Chert Fossils
Michael Abbey
Trilobite
Robert J Erwin and Photo Researchers
Coryphodon, Cenozoic Mammal
Science Source
Stegosaurus #1
Science Source
Dinosaur National Monument
Nasa
Baculites Fossil #1
Ted Kinsman
Mammoth Site Museum
Mark Newman
Mesozoic Landscape
Science Source
Aegyptopithecus Zeuxis Skull
Harry Taylor / Dorling Kindersley / Natural History Museum, London
Fossil Soft-shelled Turtle
John Cancalosi/Okapia
Giant Moa Dinornis Ingens, Cenozoic Bird
Biodiversity Heritage Library
Prehistoric, Lower Devonian Landscape
Science Source
Aquatic Life, Mesozoic Era, Illustration
British Library
Goniatite Fossil
Louise K. Broman
Kt Boundary And Iridium Layers In Rock
Millard H. Sharp
Pentaceratops Sternbergii Dinosaur
Millard H. Sharp
Archaeopteryx #1
Millard H. Sharp
Fish Fossil #11
Millard H. Sharp
Homo Neanderthalensis, Reconstruction
Elisabeth Daynes
Sand Dollar Fossil
A.b. Joyce
Sabertooth Cat #1
Millard H. Sharp
Saber Tooth Cat Xenosmilus Skull
Millard H. Sharp
Stenomylus Hitchcocki Skull
Millard H. Sharp
Saint-acheul, Acheulean Archeological
Science Source
Mastodon Tooth Fossil #3
Millard H. Sharp
Archaeopteryx Lithographica
Photo Researchers
Triassic Period
Science Source
Dinosaur Excavation Site
Science Source
Tusks From Mammoth
Dave King / Dorling Kindersley
Running Rhino Skull Fossil
Millard H. Sharp
Floater Ball Crinoid Fossil
Millard H. Sharp
Starfsh Fossil
Millard H. Sharp
Fern Leaf Fossil
Millard H. Sharp
Juvenile Oreodont Skull Fossil
Millard H. Sharp
Fish Fossil #3
Millard H. Sharp
Floater Ball Crinoid Fossil #1
Millard H. Sharp
Turtle Fossil
Millard H. Sharp
Starfish Fossil #1
Millard H. Sharp
Dinosaur Coprolite
John Kaprielian
Dinosaur Coprolite #1
John Kaprielian
Georges Cuvier, French Naturalist
Wellcome Images
Georges Cuvier, French Naturalist #7
Science Source
Mud Shrimp Fossil
Millard H. Sharp
Fossil Clam With Calcite
Millard H. Sharp
Megalodon Shark Jaws Model
Millard H. Sharp
Extinct Shark Vertebrae Column Fossil
Millard H. Sharp
Dinosaur Egg Fossil #4
Millard H. Sharp