粪化石(coprolite),即是石化的动物排泄物,通常被归入遗迹化石。粪化石虽然具有立体的形态、形似实体化石,但它们不是生物体本身,习惯上不归入实体化石。 Coprolites, which are petrified animal excretions, are often classified as trace fossils. Although the fecal fossils have a three-dimensional shape and resemble physical fossils, they are not organisms themselves and are not customarily classified as solid fossils.