恐龙是已灭绝的古代爬行动物,生活在距今2.2亿至0.7亿年的中生代地质时期,在地球上大约生存了1.5亿年,故中生代有“恐龙时代”之称谓。恐龙习性多成群结队地生活在陆地,徘徊在湖泊,栖息于崇山峻岭之中。恐龙的遗址、遗骸(遗体)、足印、蛋和粪便化石,多保存在红色砂岩层中。恐龙化石在世界各大洲都有发现,至今我国已发现恐龙种属100多种,山东发现恐龙较早,种属多,产地亦多,乃为我国产恐龙之大省。 Dinosaurs are extinct ancient reptiles, lived in the Mesozoic geological period from 220 million to 70 million years ago, and lived on the earth for about 150 million years. Therefore, the Mesozoic era has the title of “Dinosaur Age.” Dinosaur habitat in droves living in droves, hovering in lakes, inhabit the mountains in the mountains. Dinosaur sites, remains (remains), footprints, eggs and fecal fossils, are mostly preserved in red sandstone formations. Dinosaur fossils have been found in all continents of the world. So far, over 100 dinosaur species have been discovered in our country. In Shandong, dinosaurs were found earlier, with more species and more producing areas.