ichnology

詳細解釋：

ich.nol.o.gy

n.（名詞）
The branch of paleontology dealing with the study of fossilized footprints, tracks, burrows, or other traces as evidence of the activities of the organisms that produced them.
足跡化石學：古生物學的分支，以研究足跡化石、痕跡化石、洞穴化石、或其它有機物所產生活動證據的痕跡

來源：
Greek ikhnos [footprint]
Greek ikhnos [footprint]
-logy
-logy