the palate of the marine reptile placodus was characterized by large, flat, rectangular teeth covering most of the roof of the mouth, designed for crushing the hard shells of its mollusk diet - 三疊紀 幅插畫檔、美工圖案、卡通及圖標游泳
morphological characteristics of the australian lungfish as a modern representative of ancient sarcopterygian lineages - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
anatomical structure of the fossilized crinoid encrinus liliiformis from the german muschelkalk - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
stratigraphic column illustrating the chronological succession of cretaceous sedimentary layers in britain - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
a group of xenacanthus prehistoric sharks from the devonian and triassic periods of earth's history. - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
a tyrannosaurus rex dinosaur roars to claim his territory as the sun sets on a cretaceous day in north america. - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
eudimorphodon, a pterosuar from the late triassic period with a diamond shaped tail. - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
black-banded blenny made a home of a discarded glass bottle in the philippines. - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
paleontology, labyrinthodon salamandroides, mastodonsaurus jaegeri, massive, prehistoric amphibian that lived during the triassic period, victorian 19th century illustration - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
illustration of megalancosaurus standing on branch of tree showing sharp claws on front leg - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
stratigraphic column illustrating the succession of triassic sedimentary layers in central europe - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
deltadromeus dinosaurs pass by two large albertaceratops dinosaurs having a disagreement. - 三疊紀 幅插畫檔、美工圖案、卡通及圖標
chirotherium, also known as cheirotherium ('hand-beast'), is the name of a triassic trace fossil consisting of five-fingered (pentadactyle) footprints and whole tracks - 三疊紀 幅插畫檔、美工圖案、卡通及圖標化石
