a pair of tyrannosaurus rex dinosaurs approach a pair of herbivorous dinosaurs - 古生態學 幅插畫檔、美工圖案、卡通及圖標
dorygnathus was a carnivorous pterosaur that lived during the jurassic period of europe. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
deinonychus was a carnivorous dinosaur that lived during the cretaceous period of north america. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
elasmosaurus was a plesiosaur marine reptile that lived during the cretaceous period of kansas in north america. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
nothosaurus dinosaurs on a triassic beach with a flock of peteinosaurus flyinga above. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
olorotitan was a duckbilled dinosaur with a colorful fan-shaped crest on its head and existed in the cretaceous period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
anchiceratops ornatus, a prehistoric era dinosaur from the late cretaceous period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
a school of masu salmon try to evade a group of ichthyosaurs in prehistoric seas - 古生態學 幅插畫檔、美工圖案、卡通及圖標
two yangchuanosaurus dinosaurs running across a stream as a volcano erupts with smoke and ash. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
a male phorusrhacos bird of prey watches over a colony of nesting females during the miocene era. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
dilophosaurus and pterosaurs join a diplodocus dinosaur herd on their search for food. - 古生態學 幅插畫檔、美工圖案、卡通及圖標梁龍
velociraptor mongoliensis, mid-sized (2m long, 15kg) dromaeosaurid dinosaur from the late cretaceous of mongolia. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
