fossiliferous 1. A rock or other geologic deposit that has fossils within it. 2. Bearing or containing fossils; such as, rocks or strata. The totality of fossils and their placement in fossiliferous (fossil-containing) rock formations and sedimentary layers (strata) is known as the fossil record. Found on http://www.wordinfo.info/words/index/info/view_unit/851/