dimetrodon predators stick together looking for prey during the permian period - 古生態學 幅插畫檔、美工圖案、卡通及圖標
rhizodus hibberti, an extinct group of carboniferous predatory lobe-finned fish. - 古生態學 幅插畫檔、美工圖案、卡通及圖標石炭紀, 海洋生物
a mother deinocheirus dinosaur and two anhanguera pterosaurs watch as argentinosaurus make their way through swallow lake waters. - 古生態學 幅插畫檔、美工圖案、卡通及圖標恐龍
the late triassic period circa 215 million years ago, featuring the large prosauropod plateosaurus and the early dinosaur predator ceolophysis - 古生態學 幅插畫檔、美工圖案、卡通及圖標
tyrannosaurus rex smelling a few gigantspinosaurus and a corythosaurus in the near distance of the swamp. - 古生態學 幅插畫檔、美工圖案、卡通及圖標暴龍
saurophaganax maximus, a prehistoric era dinosaur from the late jurassic period. - 古生態學 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. - 古生態學 幅插畫檔、美工圖案、卡通及圖標鱷魚, 史前時代
yangchuanosaurus shangyouensis eats the carrion of a dead animal as angustinaripterus longicephalus scavenge in the background. - 古生態學 幅插畫檔、美工圖案、卡通及圖標恐龍, 翼手龍
ankylosaurus, a heavily armored herbivore dinosaur from the cretaceous period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標甲龍屬
allosaurus and diplodocus dinosaurs roam western north america in the late jurassic. - 古生態學 幅插畫檔、美工圖案、卡通及圖標梁龍
the megalodon shark was an enormous predator in the cenozoic era of prehistoric earth. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
microraptor was a flying dinosaur reptile and lived in china and mongolia in the cretaceous periods. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
bothriolepis canadensis is an extinct placoderm from the late devonian of canada. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
a tyrannosaurus rex hunting two gallimimus dinosaurs in a prehistoric river. - 古生態學 幅插畫檔、美工圖案、卡通及圖標恐龍
woolly rhino males during a snowy winter in the pleistocene period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標犀牛, 冰河時代, 動物
eoraptor, one of the world's earliest dinosaurs that lived during the late triassic period of the mesozoic era. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
a spinosaurus blocks the path of carcharodontosaurus, who is haunted by a group of sauropod dinosaurs. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
hupehsuchus is a very early triassic marine reptile about 3 feet long that is an early relative to ichthyosaurs. - 古生態學 幅插畫檔、美工圖案、卡通及圖標爬行動物, 史前時代
a female saurolophus attempts to crush a tarchia armored dinosaur as it seeks to destroy their nest. - 古生態學 幅插畫檔、美工圖案、卡通及圖標恐龍
herrerasaurus ischigualastensis is a theropod dinosaur from the late triassic of argentina. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
big felines size chart, featuring panthera leo atrox, smilodon populator, panthera tigris acutidens, panthera leo spelaea and panthera tigris altaica (the modern siberian tiger). - 古生態學 幅插畫檔、美工圖案、卡通及圖標劍齒虎
dimorphodon macronyx, a prehistoric era pterosaur from the early jurassic period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
erlikosaurus andrewsi dinosaurs in a prehistoric environment from the late cretaceous period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
pteraspis is an extinct genus of jawless ocean fish that lived in the devonian period, seen here with a group of chelmon butterflyfish. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
