Lecture 7

Question 1

Cambrian Period

Answer 1

541 - 485 Ma
- complex life emerges

Question 2

cambrian explosion start

Answer 2

538.8 Ma

Question 3

when did all principal animal groups develop by

Answer 3

530 to 520 Ma

Question 4

ordovician period

Answer 4

485 - 444 Ma

Question 5

epeiric

Answer 5

shallow inland seas

Question 6

ordovician queenston clastic wedge in NE recorded as

Answer 6

queenston shale, whirlpool sandstone, grimsby shale and thorold sandstone

Question 7

silurian period

Answer 7

444 - 419 Ma

Question 8

mid-silurian record in NE

Answer 8

Neahge, Reynales, Irondequoit, Rochester, and Lockport

Question 9

mass extinctions

Answer 9

episodes of globally-significant extinctions
- more than 20% of marine genera
- 75% of all species

Question 10

Five Phanerozoic mass extinctions

Answer 10

(Late) Ordovician, Devonian, Permian, Triassic, Cretaceous

Question 11

Devonian Period

Answer 11

419 - 359 Ma
- age of the fishes
- life starts going to land

Question 12

Mississippian

Answer 12

359 - 323 Ma

Question 13

Pennsylvanian

Answer 13

323 - 299 Ma

Question 14

Carboniferous period

Answer 14

359 - 299 Ma
- plant life propogates
- coal develops - carbon sequestration

Question 15

Permian period

Answer 15

299 - 252 Ma

Question 16

first animal to walk on land

Answer 16

Ichthyostega, but the tiktaalik was a transition form

Question 17

when did Myria;ods start to conquer land

Answer 17

414 Ma

Question 18

oldest sea floor

Answer 18

340 Ma in the Mediterranean Sea

Question 19

average sea floor age

Answer 19

200 Ma

Question 20

middle ordovician continental layout

Answer 20

deep ocean basin between laurentia and baltica (Iapetus ocean)

Question 21

middle silurian continental layout

Answer 21

laurentia and baltica touching, no sea between

Question 22

early devonian continental layout

Answer 22

euramerica being created as laurentia and baltica get pushed together. taconic mountains is being created

Question 23

late carboniferous continental layout

Answer 23

pange has been formed from laurussia and gondwana fusing together 310 Ma, and the taconic mountains are done being created. most of the continental pieces are together

Question 24

late permian continental layout

Answer 24

almost all of the continental pieces are together

Question 25

pangea time period

Answer 25

formed starting 410 Ma, completely together by 250 Ma (end of permian), and break up started 200 Ma

Question 26

rifting of rodinia and creation of lapetus

Answer 26

750 Ma

Question 27

lapetus ocean formed by

Answer 27

540 Ma

Question 28

taconic orogeny

Answer 28

450 Ma

Question 29

acadian orogeny

Answer 29

350 MA

Question 30

how many ice ages in the past 3 Ga

Answer 30

5-6

Question 31

tetrapods

Answer 31

4 limbed vertebrates (amphibians, reptiles, birds, dinos, mammals)

Question 32

polydactyl

Answer 32

more than 5 digits

Question 33

mesozoic era (age of the dinosaurs)

Answer 33

252 - 66 Ma

Question 34

triassic period

Answer 34

252 - 201 Ma

Question 35

jurassic period

Answer 35

201 - 145 Ma

Question 36

creataceous period

Answer 36

145 - 66 Ma

Question 37

archosaurs

Answer 37

(diapsids)- a group including crocodiles, extinct flying reptiles, and dinosaurs

Question 38

saurischia

Answer 38

lizzard-hipped. pubis points forwards with the ischlum backwards, and the illum on top

Question 39

ornithischia

Answer 39

bird-hipped. the pubis and ischlum points backwayds with the illum on top