lesson 1
name 4 earth layers
in order!!
the inner core, the outer core, the mantle and the crust.
how old are the oldest rocks
to be 4
Billion years old
what is a body fossil
The remains of an actual organism.
THE PERMIAN EXTINCTION explain
Approximately 252 Million
years ago the most
significant extinction event
in history occurred.
It is estimated that 90-95%
of all marine species and
70% of all land species went
extinct.
THE FIRST MAMMALs were
Lystrosaurus: Reptile-like Mammal
Placerias: Reptile-like Mammal
Morganucodon: The first mammal
what is the super continents name
pangea
The Geological time scale is divided
into 4 eras.
The Precambrian
The Paleozoic
The Mesozoic
The Cenozoic
Mold is:
is an imprint left by a shell
on a rock around it
The first Amphibian was
(Temnospondyli)
PLANTs.....
Cycads
Ginkgo (tree found in east asia)
Ferns
Conifers
how old is the earth
4.543 billion years
The first life on earth was a single celled
organism named
Archaea.
Casts:
are replica fossils made
using a mold
The first Reptile was
(Hyonomus)
MAJOR EVENTS
Emergence of Dinosaurs
First Mammals
First Flying Reptiles
Triassic Extinction
what galaxy are we in
the milky way
About 1.9 Billion years ago, microscopic, photosynthetic, single cell bacteria called ___________ began to show up.
cyanobacteria
what are examples of trace fossils
Evidence that an organism was present without the actual organism. Burrows , Footprints , skat
THE CARBONIFEROUS PERIOD
was the age of ____
Age of Amphibians
TRIASSIC EXTINCTION was
70-75% of all species went extinct
Mostly affected marine reptiles, ammonites, and some
terrestrial vertebrates
One of the five largest extinctions
Will the Universe end?
no idea
when was SNOWBALL EARTH
– LATE PRECAMBRIAN ERA
1 BILLION YEARS AGO TO 600 MILLION YEARS AGO
name 5 eras
Quaternary
Tertiary
Cretaceous
Jurassic
Triassic
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
THE PERMIAN PERIOD -_______ - ________ MYA
299 – 252
JURASSIC PERIOD**
____-___ MYA
201-145