1. 真体腔动物:Kinorhyncha - 动吻动物门 | Coelomata - 真体腔动物 | Gastrotricha - 腹毛动物门
1. Reservoir of paleo-oil is mainly bioherm limestone. Bitumen mainly occurs in cavities and fractures, and also in matrix pores and biological coelomata.
古油藏的储集层均为生物礁滩灰岩,沥青的主要储集空间以洞、缝为主,其次为基质孔隙和生物体腔内。