group of prehistoric people shown making and using primitive tools, including handaxes, burins, flints - 史前時代 幅插畫檔、美工圖案、卡通及圖標史前人類
illustration of australopithecus afarensis and map of africa pinpointing discovery location - 史前時代 幅插畫檔、美工圖案、卡通及圖標非洲 - 地理位置, 進化, 起源
a pair of velociraptors patrol the shore of an ancient lake looking for their next meal. - 史前時代 幅插畫檔、美工圖案、卡通及圖標恐龍
glyptotherium arizonae, a glyptodontid from the pleistocene megafauna of north america. - 史前時代 幅插畫檔、美工圖案、卡通及圖標
kaprosuchus is an extinct genus of crocodile from the upper cretaceous of niger, africa. - 史前時代 幅插畫檔、美工圖案、卡通及圖標鱷魚
a dodo bird hides in a dense jungle near a stream filled with large mossy boulders. - 史前時代 幅插畫檔、美工圖案、卡通及圖標
tyrannosaurus rex, a genus of coelurosaurian theropod dinosaur of the upper cretaceous period. - 史前時代 幅插畫檔、美工圖案、卡通及圖標暴龍, 恐龍, 側視
a tyrannosaurus rex eats the carrion of a dead triceratops in prehistoric wetlands. - 史前時代 幅插畫檔、美工圖案、卡通及圖標暴龍, 草食動物, 白堊紀
a pair of carnivorous allosaurus dinosaurs confront a giant diplodocus sauropod during earth's jurassic period of time. - 史前時代 幅插畫檔、美工圖案、卡通及圖標梁龍, 異特龍, 恐龍
tyrannosaurus rex dinosaurs escaping the heat and fire of a big meteorite crash. - 史前時代 幅插畫檔、美工圖案、卡通及圖標恐龍
coelacanth fish was thought to be extinct but several living specimens have found to still exist in tropical seas. - 史前時代 幅插畫檔、美工圖案、卡通及圖標
an acrocanthosaurus roams an early cretaceous north america on the shores of the mid-continent sea around arkansas. - 史前時代 幅插畫檔、美工圖案、卡通及圖標高棘龍屬
illustration of stone age cave painting of dun horse at lascaux - 史前時代 幅插畫檔、美工圖案、卡通及圖標石洞壁畫, 白色的背景, 法國
ludodactylus sibbicki, a pterosaur from the lower cretaceous crato formation of brazil. - 史前時代 幅插畫檔、美工圖案、卡通及圖標翼手龍, 動物翅膀
