Index Fossils
Life on Earth
Page 8
Page 9
Pages 8 and 9
100
What two index fossils share the same letter?
Mastodont, Beluga Whale
100

Approximately how long ago did earliest mammals appear?

213ish million years ago
100
What are the two Epochs during the Cretaceous period?
Late and early
100
How many different corals are there?

Three- 

V Pleurodictyllum 

U Cystiphyllum

T Pleurodictyum

100
Which Period lasted the longest during the Cenozoic Era?
Paleogene
200
What period do most index fossils fall in?
Devonian
200
During which Era did earliest insects appear?
Paleozoic
200
How many Epochs are there during the Carboniferous Period?
5
200
How many Crinoids are there?
two


H Eucalyptocrinus

I Ctenocrinus

200
During the Permian Period, which Epoch last the longest?
Early
300
Approximately how old is a Valcouroceras?
466 million years old
300

Approximately how old are the earliest insects?

420ish million years old
300
What Epoch did invertebrates dominate Earth's first coral reefs? 
Middle Ordivician
300
Name the three types of trilobites.
A Elliptocephalia


B Cryptolithus

C Phacops


300
Which Index Fossil occurred at the same time when widespread deposition over most of New York along edge of Iapetus occurred?
A- Elliptocephala
400

Approximately how old is a Hexameroceras?

435ish millions of years old
400

What period are the earliest amphibians found?

Devonian
400
What Epoch did earliest grasses form?
Oligocene
400
Name the different Index Fossils during the Cenezoic Era.
O mastodaont, Beluga Whale


S Condor

400
What occurred with Life on Earth and Important Geological Events in New York during the Quaternary Period?
humans, mastodons, mammoths are presented as well as the advance and retreat of last continental ice
500

Approximately how old is a Bothrioepis?

370ish million years old
500
During which three periods did dinosaurs live?
Triassic,   Jurassic, Cretaceous
500
What three periods are fish found in?
Cambrian, Devonian, Cretaceous
500
What Index Fossils is represented when Pangaea begins to break up?
L Coelophysis
500
What Important Geological Event in New York occurred when extensive coal-forming forests occurred?
Alleghenian orogeny caused by collison of North America and Africa along transform margin, forming Pangaea
M
e
n
u