A fossilized footprint.
足迹化石成为化石的足迹
archaeologists excavated fossilized dinosaur tracks from the riverBed
考古学家从河床中挖掘出恐龙的足迹化石。
Theropod (Dinosauria:Saurischia) tracks from Lower Cretaceous Yixian Formation at Sihetun Village, Liaoning Province, China and possible track makers
辽宁省四合屯下白垩统义县组的兽脚类足迹化石和可能的造迹者(英文)
chemical footprinting
化学足迹（试验）法
Application and Research of Water Footprint and Rocky Desertification Controlling in Typical Karst Area;
典型岩溶地区水足迹及其在石漠化防治中的应用研究
A Study on the Characteristic and the Integration of Tourism Resources in QiJiang Fossil Wood-Dinosaur Vestigiofossil Geopark;
綦江木化石—恐龙足迹地质公园旅游资源特色与整合开发研究
Brachiopoda (fossil)
腕足动物门（化石）
There is evidence from dinosaur track ways, mass accumulations of certain dinosaur fossils, and nesting sites that dinosaurs were social animals.
恐龙的足迹，大量的化石堆积和群居的巢穴，这些证据都证明恐龙是一种群居动物。
Study on Ecological Footprint Dynamic Change and Forecast of Sichuan Province;
四川省生态足迹动态变化与预测研究
Applicatuon of ecological footprint of Nachong City in the process of urbanization;
生态足迹在南充城市化进程中的应用
Dynamics of ecological footprint of Guyuan County from 1997～2006
1997～2006年沽源县生态足迹动态变化分析
Study on dynamic change and its prediction of ecological footprint in Dali City,Yunnan Province,China
大理市生态足迹动态变化及预测研究
Changes of ecological footprint and its driving force in mining cities
矿业城市生态足迹变化及驱动力分析
of or related to fossil cephalopods of the order Ammonoidea.
菊石目头足动物的化石或者与这种化石相关的。
the impression of a leaf in a fossil
化石中一片叶子留下的痕迹.
THE TRACE FOSSILS OF SILURIAN AND DEVONIAN SYSTEMS OF THE NORTHWESTERN REGION,HUNAN PROVINCE
湘西北地区志留系泥盆系的痕迹化石
The significance of ecological system trace fossils--Palaeosol
生态系统痕迹化石——古土壤的研究意义
Dynamic Change of Ecological Footprint during Rapid Urbanization of Chongqing
快速城市化下的重庆市生态足迹动态变化研究