Question

Study Worksheet 12) Geologic Time Scale: (14pts) Match the letter below to each evolutionary "event". Epoch | Era | Period | Date (MYA) | Event? --- | --- | --- | --- | --- Phanerozoic | Cenozoic | Quaternary | today | | | Tertiary | 1.8 | | Mesozoic | Cretaceous | 65 | | | Jurassic | 144 | | | Triassic | 206 | | Paleozoic | Permian | 248 | | | Carboniferous | 290 | | | Devonian | 354 | | | Silurian | 417 | | | Ordovician | 443 | | | Cambrian | 490 | Precambrian | Proterozoic | Precambrian | 543 | | Archaean | | 2500 | | Hadean | | 3800 | | | | 4500 | A) Early feathered birds and furry mammals appear in this period. B) "The great dying" where 96% of all marine species, including trilobites, go extinct. C) Horses were domesticated by nomadic human tribes in central Asia. D) Flying insects dominate swampy forests and the first egg-laying reptiles appear. E) Marine jawless fishes diversify and primitive non-vascular plants colonize land. F) Multicellular aerobic organisms diversify with rising global oxygen levels. G) The oldest fossils of trilobites and annelid worms are found here. H) Anoxygenic and oxygenic photosynthetic microbes form stromatolite fossils. I) A massive terrestrial extinction wipes out non-avian "dinosaurs" here. J) Whales evolved from semi-aquatic grazing mammals adapting to the seas. K) The first flying pterosaur reptiles radiate following a major extinction. L) Jawed bony fishes first colonize freshwater habitats. M) No evidence of life is present. N) The first salamander-like amphibians colonize land.

          Study Worksheet
12) Geologic Time Scale: (14pts) Match the letter below to each evolutionary "event".
Epoch | Era | Period | Date (MYA) | Event?
--- | --- | --- | --- | ---
Phanerozoic | Cenozoic | Quaternary | today |
| | Tertiary | 1.8 |
| Mesozoic | Cretaceous | 65 |
| | Jurassic | 144 |
| | Triassic | 206 |
| Paleozoic | Permian | 248 |
| | Carboniferous | 290 |
| | Devonian | 354 |
| | Silurian | 417 |
| | Ordovician | 443 |
| | Cambrian | 490 |
Precambrian | Proterozoic | Precambrian | 543 |
| Archaean | | 2500 |
| Hadean | | 3800 |
| | | 4500 |

A) Early feathered birds and furry mammals appear in this period.
B) "The great dying" where 96% of all marine species, including trilobites, go extinct.
C) Horses were domesticated by nomadic human tribes in central Asia.
D) Flying insects dominate swampy forests and the first egg-laying reptiles appear.
E) Marine jawless fishes diversify and primitive non-vascular plants colonize land.
F) Multicellular aerobic organisms diversify with rising global oxygen levels.
G) The oldest fossils of trilobites and annelid worms are found here.
H) Anoxygenic and oxygenic photosynthetic microbes form stromatolite fossils.
I) A massive terrestrial extinction wipes out non-avian "dinosaurs" here.
J) Whales evolved from semi-aquatic grazing mammals adapting to the seas.
K) The first flying pterosaur reptiles radiate following a major extinction.
L) Jawed bony fishes first colonize freshwater habitats.
M) No evidence of life is present.
N) The first salamander-like amphibians colonize land.

Study Worksheet
12) Geologic Time Scale: (14pts) Match the letter below to each evolutionary "event".
Epoch | Era | Period | Date (MYA) | Event?
— | — | — | — | —
Phanerozoic | Cenozoic | Quaternary | today |
| | Tertiary | 1.8 |
| Mesozoic | Cretaceous | 65 |
| | Jurassic | 144 |
| | Triassic | 206 |
| Paleozoic | Permian | 248 |
| | Carboniferous | 290 |
| | Devonian | 354 |
| | Silurian | 417 |
| | Ordovician | 443 |
| | Cambrian | 490 |
Precambrian | Proterozoic | Precambrian | 543 |
| Archaean | | 2500 |
| Hadean | | 3800 |
| | | 4500 |

A) Early feathered birds and furry mammals appear in this period.
B) "The great dying" where 96% of all marine species, including trilobites, go extinct.
C) Horses were domesticated by nomadic human tribes in central Asia.
D) Flying insects dominate swampy forests and the first egg-laying reptiles appear.
E) Marine jawless fishes diversify and primitive non-vascular plants colonize land.
F) Multicellular aerobic organisms diversify with rising global oxygen levels.
G) The oldest fossils of trilobites and annelid worms are found here.
H) Anoxygenic and oxygenic photosynthetic microbes form stromatolite fossils.
I) A massive terrestrial extinction wipes out non-avian "dinosaurs" here.
J) Whales evolved from semi-aquatic grazing mammals adapting to the seas.
K) The first flying pterosaur reptiles radiate following a major extinction.
L) Jawed bony fishes first colonize freshwater habitats.
M) No evidence of life is present.
N) The first salamander-like amphibians colonize land.

Added by M-Nica G.

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