A fossil is any evidence of an organism preserved in rock.
It's usually called a fossil.
fossil
A fossil
fossils
They are called fossils.
Burial in sediment
A fossil is any trace of an organism preserved in a rock.
They are all sediments.
Sedimentary rock
They are generically called fossils.
fossils
Fossils
A fossil
They are called fossils.
fossils
Fossile
Is a fossil.
Burial in sediment
because they are preserved in the rock formations
A gap in the geological record in a body of rock is called an unconformity.
The correct spelling is "fossils." It refers to the remains or impressions of prehistoric organisms preserved in rock.