geological timescale

Question 1

longest subdivision; based on the abundance of certain fossils

Answer 1

eons

Question 2

next to longest; marked by major changes in the fossil record

Answer 2

eras

Question 3

based on types of life existing at the time

Answer 3

period

Question 4

shortest subdivision; marked by differences in life forms and an vary from continent to continent

Answer 4

epochs

Question 5

divides up the history of the earth based on life forms that have existed during specific times since the creation of the planet

Answer 5

geologic time scale

Question 6

came up with the geological time scale

Answer 6

nicholas steno

Question 7

remains or traces of an organism from the geologic past that has been preserved in sediment or rock

Answer 7

fossils

Question 8

Eons, Eras, Epochs, and Periods are divisions known as?

Answer 8

geochronologic units

Question 9

Named for exposures of Strata found in a type section in Wales by British Geologist Adam Sedgwick

Answer 9

Cambrian

Question 10

named after significant outcrops first discovered near Devonshire, England

Answer 10

Devonian

Question 11

Jurassic: Named for representative strata first seen in the Jura Mountains by German geologist _____ in ____

Answer 11

Humboldt 1795

Question 12

age of mammals

Answer 12

cenozoic

Question 13

age of reptiles

Answer 13

mesozoic

Question 14

age of invertebrates

Answer 14

paleozoic

Question 15

no life possible

Answer 15

4600, precambrian (hadean, archean, and proterozoic ages)

Question 16

-SC near equator
-island arc move toward north america
-explosion of life
-phyla came into being
-oxygen levels rose enough to support life
-trilobites and brachiopods

Answer 16

Paleozoic, Cambrian (540)

Question 17

-construction of south carolina
-extinction due to growth of ice caps
-first animals with bones
-dominant: marine
-corals and trilobites

Answer 17

Paleozoic, Ordovician (490)

Question 18

-extensive erosion
-first land plants appear and land animals follow

Answer 18

Paleozoic, Silurian (443)

Question 19

• Acadian Orogeny - SC
  metamorphism
  -dominant: fish
  -amphibians, evergreens, and ferns appear

Answer 19

Paleozoic, Devonian (417)

Question 20

-much of north am is underwater
-first seed plants appear
-sea life fluorishes
-coral, brachiopods, blastoids, and bryozoa

Answer 20

Paleozoic, Carboniferous, Mississippian (354)

Question 21

-great swamps develop (future coal deposits)
-reptiles develop from amphibians
-flying insects appear

Answer 21

Paleozoic, Carboniferous, Pennysylvanian (320)

Question 22

-pangaea forms
-appalachians rise
-90% extinction including trilobites, blastoids, fish, and amphibians because of heavy volcanism in Siberia

Answer 22

Permian (290)

Question 23

-pangaea begins to break apart
-rocky mountains and sierra nevada form
-first dinosaurs, mammals, crinoids, and modern echinoids appear

Answer 23

Mesozoic, Triassic (248)

Question 24

Golden Age of Dinosaurs
First birds appear
western US: orogeny of rockies
NA continues to rotate away from africa

Answer 24

Mesozoic, Jurassic (206)

Question 25

-mass extinction by a meteorite impact -bye bye dinosaurs, ammonites, and 25% of marine life -trex develops -snakes, angiosperms, and first primates appear -

Answer 25

Mesozoic, Cretaceous (144)

Question 26

earthquakes common cat sized horses tropical plants dominate (yan ang tipo ko sa mga plants, dominant🥵🥵)

Answer 26

Cenozoic, Tertiary, Paleocene (65.0)

Question 27

sea levels rise grass spreads diverse array of animals such as whales, rhinos, and elephants

Answer 27

Cenozoic, Tertiary, Eocene (54.8)

Question 28

appalachians uplift erosion increases cats dogs apes

Answer 28

Cenozoic, Tertiary, Oligocene (33.7)

Question 29

sandhills form horses, mastadons, mammoths, tigers and camels live in south Carolina

Answer 29

Cenozoic, Tertiary, Milocene (23.8)

Question 30

volcanic activity in NA and africa grand canyon forms hominids develop

Answer 30

Cenozoic, Tertiary, Pliocene (5.3)

Question 31

ice sheets form modern humans go brr asians arrive

Answer 31

Cenozoic, Quarternary, Pleistocene (1.8)

Question 32

beaches and barrier islands form mastadons gone human culture fluorishes extinction

Answer 32

cenozoic, quarternary, holocene (0.1)

Question 33

cenozoic, mesozoic, paleozoic, are considered as

Answer 33

eras

Question 34

quarternary, tertiary, cretaceous, jurassic, triassic, permian and more

Answer 34

periods

Question 35

holocene, pliocene chuchu

Answer 35

epochs