Fossils

Sedimentary Rocks Shale Conglomerate Sandstone

Fossils The remains or imprints of living things of the past found in Sedimentary rocks.

Fossils provide information about life and conditions in the past.

Fossils of Sea Creatures

Fossils of Plants Plant fossils can tell us about the ancient environment Plant fossils can tell us about the ancient environment

Animal Fossils Animal fossils can tell us Animal fossils can tell us –About past environments –What the animal ate –How they lived

Types of Fossils Petrified – Minerals have filled in where an organisms once was Petrified – Minerals have filled in where an organisms once was Molds – A hollow area that an organism has left. Molds – A hollow area that an organism has left. Cast – A copy of the shape of the organism (opposite of a mold) Cast – A copy of the shape of the organism (opposite of a mold) Carbon Film – a thin coating of carbon that is left behind when gases have been release by the decaying fossil (like a leaf print on a rock) Carbon Film – a thin coating of carbon that is left behind when gases have been release by the decaying fossil (like a leaf print on a rock) Trace – An imprint that an organism left behind (like a footprint) Trace – An imprint that an organism left behind (like a footprint)

How old is it? Relative Age – It’s age when compared to others ( I am older than you) Relative Age – It’s age when compared to others ( I am older than you) Absolute age – It’s actual or real age Absolute age – It’s actual or real age –We use radioactive dating to find this Unconformity – a gap in the the geological record (like from erosion) Unconformity – a gap in the the geological record (like from erosion)