Pre-Historic Life

Pre-Historic Life

A Deadly Meteor Shower

• Meteor the Gulf of Mexico

• About 65 million years ago

• It ended the Cretaceous Period

Dinosaurs' Grand- Kids

• Dinosaurs had feathers

• Dinosaurs linked to the bird family

• dinosaur are more closely related to bird than reptiles

• Example the road runner

Mammals Roam the Earth

• 200 million years

• Came after the Dinosaurs

• Found in North America

• Had fur

• Temperature was much colder (due to the Ice Age)

Pretriassic Periods

• 4 million years

• bacteria and soft-bodied critters int he ocean

• Then followed the Silurian, Devonian, Carboniferous and Permian lasted about 570 million years

Triassic Period

• 250-205 million yeas ago

• Reptiles in crazy styles and shapes

Jurassic Period

• 205- 135 million

• Dinosaur ruled the earth

• The water

• The Air

Cretaceous Period

• 135- 65 million years ago

• T-rex started to appear

• angiosperms (flowering plants) started appear

Tertiary Period

• 65-1.5 million years

• Animals with fur no more animals with scales

• NO more dinosaurs

Quaternary Period

• 1.6 million years ago till now

• many new mammals started to appear

• earliest record of humans 6,000

• Most larger mammals died with the Ice Age

Multiple Choice

Why do some paleontologist say that dinosaurs are more closely related to birds than they re to reptiles

• Paleontologists have discovered dinosaurs that had feathers.

• Paleontologists have discovered dinosaurs that could fly.

• Paleontologist have discovered that dinosaurs laid eggs

• Paleontologist have discovered that dinosaurs built their nest

Multiple Choice

In which prehistoric period did mammals dominate the Earth?

• Triassic Period

• Cretaceous Period

• Tertiary Period

• Jurassic Period

Multiple Choice

Ancient humans were most likely to have lived at the same time as which of the following creatures?

• Tyrannosaurus rex

• angiosperm

• Archaeologist

• saber-tooth tigers