the predator opabinia uses its proboscis to eat a trilobite in a cambrian ocean. - 古生態學 幅插畫檔、美工圖案、卡通及圖標插圖
trilobites try to hide from predator opabinia in a cambrian sea full of stromatolites. - 古生態學 幅插畫檔、美工圖案、卡通及圖標插圖
a large nothosaurus aquatic reptile preys on shonisaurus ichthyosaurs in triassic seas. - 古生態學 幅插畫檔、美工圖案、卡通及圖標水中
pikaia fish swim along with trilobite invetebrates during the cambrian period. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
the large marine lizard of north america, tylosaurus, tries to feed on some ammonites. - 古生態學 幅插畫檔、美工圖案、卡通及圖標
jobaria, a large sauropod, is menaced by meat eating afrovenators in jurassic north africa. - 古生態學 幅插畫檔、美工圖案、卡通及圖標恐龍, 插圖
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