The Ordovician Period

By: Michelle Favela , Joceline Vargas

Plants

• They were reefs in the widespread ocean

• Its unknown that plant lived on land during this period or not in this period.

• If plants did live during this period, it would probably be in the form of moss and lichens.

Animals

• Since they were lots of floods, Ordovician life was very dissimilar to Cabrain life.

• About 600 millions years ago in the Precambrain , the fossil record speaks a more rapid change.

• Some are most like cnidarians ,worms ,or soft-bodied relatives of the arthropods.

Major Events

• During the Ordovician period there was a mass extinction of organism’s at the end of Ordovician.

• This extinction was one of the greatest ever recorded in earth history.

• The major event is that it follows the Cambrain period, and is followed by the Silurian period.

Climate

• The climate was fairly warm.

• In the period about 125,000 years ago there was no summer ice in the north pole.

• The average sea level globally rose between 0.1 and 0.2 metres during the 20th century.

• By 2020 between 75 and 250 million people in

Africa will be facing increased water shortages

Interesting Facts

• The Ordovician Period started at a major extinction event called the Cambrian Ordovician.

• The name Ordovician was named after the Celtic tribe of the Ordovices.

• During the Ordovician, the southern continents were collected into a single continent called Gondwana.