Question

(a) Remains of which animals are found in the earliest level?​

Answer 1

A fossil is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood, oil, coal, and DNA remnants.

Answer 2

Dinosaur,mammoth etc