End Of Cretaceous Kt Event
Richard Bizley
Cretaceous-tertiary Extinction Event #3
Richard Bizley
Pangaea Break-up
Tim Brown/science Photo Library
Cretaceous Period Fauna
Christian Jegou Publiphoto Diffusion/ Science Photo Library
Natural Oil Seep #1
Sinclair Stammers/science Photo Library
Baryonyx Dinosaur
Jose Antonio PeÑas
K/t Boundary Layer Of Clay And Iridium
Prof. Walter Alvarez/science Photo Library
End Of The Dinosaurs
Jose Antonio Penas/science Photo Library
End Of The Dinosaurs #1
Detlev Van Ravenswaay/science Photo Library
End Of The Dinosaurs #2
Detlev Van Ravenswaay/science Photo Library
End Of The Dinosaurs
Detlev Van Ravenswaay/science Photo Library
End Of The Dinosaurs
Masato Hattori/science Photo Library
Hawker Dragonfly Fossil
Natural History Museum, London/science Photo Library
Juvenile Dinosaur Skeleton
Sinclair Stammers
Pteranodon Pterosaurs
Natural History Museum, London/science Photo Library
Iguanodon Reconstruction
Natural History Museum, London/science Photo Library
Cretaceous Herbivorous Dinosaurs #1
Deagostini/uig
End Of Cretaceous Kt Event
Roger Harris/science Photo Library
Vegasaurus Plesiosaur
Mark P. Witton/science Photo Library
Edmontosaurus Dinosaur #1
James Kuether/science Photo Library
Cretaceous Marine Animals
Richard Bizley
Cretaceous Rock Deposits
Pascal Goetgheluck/science Photo Library
Cretaceous Heteromorph Ammonites
Richard Bizley
Cretaceous Earth #1
Mark Garlick/science Photo Library
Cretaceous Land And Marine Life
Richard Bizley
Cretaceous Fauna
Christian Jegou Publiphoto Diffusion/ Science Photo Library
Cretaceous Earth
Mark Garlick/science Photo Library
Cretaceous/tertiary Boundary
Dr. Robert Spicer/science Photo Library
Cretaceous Animals
Mark Garlick/science Photo Library
Cretaceous Marine Predators
Walter Myers
Cretaceous Hadrosaurs
Deagostini/uig
Cretaceous Hadrosaurs #1
Deagostini/uig
Cretaceous Dinosaurs
Deagostini/uig
Cretaceous Australian Fauna
James Kuether/science Photo Library
Cretaceous Life
Richard Bizley
Cretaceous Herbivorous Dinosaurs
Deagostini/uig
Cretaceous Dinosaurs
Masato Hattori/science Photo Library
Cretaceous Showdown
Mark Garlick/science Photo Library
Cretaceous Animals
Collection Abecasis/science Photo Library
Cretaceous Sandstone Pillar
Sinclair Stammers/science Photo Library
Flying Pterosaurs
Mauricio Anton
Spiny Ammonite Fossil
Pascal Goetgheluck/science Photo Library
Ichthyornis
Jaime Chirinos
Ceratopsian Dinosaur Comparative Chart
James Kuether/science Photo Library
Xiphactinus Prehistoric Fish
Jaime Chirinos/science Photo Library
Dinosaur Injuries And Infections
Jose Antonio Penas/science Photo Library
Ankylosaurus Dinosaur
Deagostini/uig/science Photo Library
Prehistoric Ant #3
Pascal Goetgheluck/science Photo Library
Early Cretaceous Life
Richard Bizley
Map Of Cretaceous Earth
Mark Garlick/science Photo Library
Plants In The Cretaceous Period
Mark Garlick/science Photo Library
Upper Cretaceous Dinosaurs
Natural History Museum, London/science Photo Library
Lower Cretaceous Dinosaurs
Natural History Museum, London/science Photo Library
Late Cretaceous Landscape
James Kuether/science Photo Library
Jurassic And Cretaceous Limestone
Dr Juerg Alean/science Photo Library
Early Cretaceous Landscape
Natural History Museum, London/science Photo Library
Early Cretaceous Flora
James Kuether/science Photo Library
Continents 65 Million Years Ago #1
Mikkel Juul Jensen / Science Photo Library
Deinonychus Dinosaur
Roger Harris/science Photo Library
End Of The Dinosaurs #4
Detlev Van Ravenswaay/science Photo Library
Pachysaurus Dinosaur #1
Friedrich Saurer
Globidens Hunting Ammonite
James Kuether/science Photo Library
Hadrosaurus Dinosaur
Deagostini/uig/science Photo Library
Pterosaur Size Comparison
Nemo Ramjet
Plesiosaurs And Erupting Volcano
Nicolle Rager-fuller, National Science Foundation/science Photo Library
T-rex With Feathers
Leonello Calvetti/science Photo Library
Pair Of Pachycephalosaurus Dinosaurs
James Kuether/science Photo Library
Woolungosaurus
John Conway/science Photo Library
T-rex Fighting Ankylosaur
Richard Jones/science Photo Library
Chicxulub Impact Event #2
Detlev Van Ravenswaay/science Photo Library
Nipponites Ammonite Fossil
Natural History Museum, London/science Photo Library
Chicxulub Impact Ejecta
David A. Kring/science Photo Library