trace e fossil足迹化石
trace fossil detail足迹化石;踪迹化石
trace fossil ChondritesChondrites遗迹化石
plant trace fossil植物痕迹化石
trace fossil assemblage遗迹化石群落
digging trace fossil掘迹化石
elite trace fossil明星遗迹化石
animal trace fossil动物遗迹化石
trace fossil associations痕迹化石组合
N（名词） the fossilized remains of a track, trail, footprint, burrow, etc, of an organism 踪迹化石