THE DEVONIAN PERIOD

PALEOZOIC ERA

• Ran from 542 million years ago to 251 million years ago.
• The first vertebrate animals colonized land.
• Life flourished in the seas
• Trilobites were fading as fish became more diverse.
• Referred to as The Age of Cockroaches.

DEVONIAN PERIOD

• When plants first had roots and leaves.
• Known as the Age of The Fish.
• Fish reached large diversity.
• Climate was warm and lacked glaciers.
• From 417 to 354 million years ago.

DEVONIAN CONTINUED

• characterized as a "greenhouse age".
• broken into Early, Middle and Late subdivisions.
• time of great tectonic activity.
• Greenhouse age
• Home to vertebrae animals.

PLANTS

• Lycophyte
• Horsetail
• Ferns

ANIMALS

• Agoniatitida
• Acleistoceras
• Bactroceras

MAJOR EVENTS

• Mass extinction
• Leaves and roots first appear.
• Had a supercontinent.

SOURCES

• http://www.livescience.com/37584-paleozoic-era.html
• http://en.wikipedia.org/wiki/Devonian_period
• http://science.nationalgeographic.com/science/prehistoric-world/devonian/