Asseration Aschaeozoic era contains abundant fossils
Reason Life originated in Palaeozoic era

Life originted in the era:

Reptiles flourished in the Palaeozoic era.

In which era life originated?

Name the periods of Palaeozoic era.

In which era, did life originate?

Fossils of invertebrates indicate they orginated in the Cenozoic era.

Asseration Petrified fossils contains hard parts of orginisms Reason Moulds and casts lack the remains of organisms