Paleozoic era
When did the Paleozoic era occur?
Around 541 million years ago
The Mesozoic era was known as the age of what?
The age of the reptiles
When did the Cenozoic era begin
66 million years ago- present
What are fossils
preserved parts from ancient life forms
What type of life form was present during this era?
Marine life, invertebrates, land animals had not been evolved yet
What happened to the earth during this era?
Continents started splitting and forming mountains
What is this era known for?
the age of the mammals and appearance of human species
What is the study of fossils called
Paleontology
What kind of weather did the Paleozoic era have?
Cold weather with glaciers, however warmer near the equator
When did the Mesozoic era begin?
252.2 million years ago
When did humans appear in the Cenozoic era?
Around 6 million years ago during the Miocene epoch
What are index fossils?
Fossils of a living being that only existed for a certain period of time, they are also the most common type of fossil
What was to main continent during this era and what present day continents was it made out of?
Gondwana was the name of its super continent, made up of the present day continents known as Africa, South America, Antarctica and Australia
What type of rock was most common in this era?
sedimentary rocks
What was the climate like during early ages of this era
Mainly warm and green
What is a mold and cast?
a mold is when a decayed life form has left an impression of their form
a cast is formed when molds are filled with minerals, amber and different types of things
What percent of living species remained after the huge extinction during the Paleozoic era
10% of the species remained after the extinction
What were the most common land vertbrates
Dinosaurs
What are the three periods of the Cenozoic era
Paleogene, the Neogene, and the Quaternary
What is the Latin word for fossil and what does it mean?
Fodere is the Latin word, meaning dig