eryops
Late Paleozoic organism
diplocaulus (nectrideans) - why huge heads?
Late Paleozoic organism
dimetrodon - purpose of fin
Late Paleozoic organism
gorgonopsians
Late Paleozoic organism
moschops
Late Paleozoic organism
dicynodonts
Late Paleozoic organism
diatoms/radiolarians
Mesozoic marine plankton
Globogerinids
Mesozoic marine plankton
Ichthyosaur
Mesozoic marine reptile
Elasmosaurus (a plesiosaur)
Mesozoic marine reptile
Kronosaurus
Mesozoic marine reptile
Placodonts
Mesozoic marine reptile
Pterosaurs
Mesozoic marine reptile
Eurparkaria
Thecodont
Tanystropheous
Thecodont
Ankylosaur
Ornithischian dinosaur
Ceratopsians
Ornithischian dinosaur
Hadrosaurs
Ornithischian dinosaur
Styracosaurus
Ornithischian dinosaur
Iguanadon
Ornithischian dinosaur
Stegosaurus
Ornithischian dinosaur
Dracorex hogwartsia
Ornithischian dinosaur
Allosaurs
Theropod Saurischian dinosaur
Archaeopteryx
Theropod Saurischian dinosaur
Compsognathus
Theropod Saurischian dinosaur
Deinonychus
Theropod Saurischian dinosaur
Carnotaurus sastrei
Theropod Saurischian dinosaur
Amargasaurus
Sauropod Saurischian dinosaur
Ambulocetus natans
Cenozoic beast
Diatryma
Cenozoic beast
Glyptodon
Cenozoic beast
Paraceratherium
Cenozoic beast
Tapir
Cenozoic beast
coccolithophores
Mesozoic marine plankton