Geohistory- using pages 2,3,8, and 9 in the ESRT

What Era were mammals first seen?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Age of fish and amphibians

• extinction

• paleozoic era

• fossil record

• Precambrian era

How many millions of years ago did the dinosaurs become extinct?

• 251 mya

• 65.5 mya

• 542 mya

• 251-200 mya

The Grenville Orogeny occurred during which Eon?

• Phanerozoic

• Precambrian

The Coelophysis dinosaur appeared on Earth during which Period?

• Cretaceous

• Jurassic

• Triassic

• Paleogene

The earliest fishes appeared during

• middle triassic

• late silurian

• middle cambrian

• Paleogene

What era did trilobites, fishes, and other marine organisms dominate?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

90% of Earth’s history occurred during which era?

• Precambrian

• Paleozoic

• Mesozoic

• Cenozoic

Base your answer on the diagram below, which represents a rock sample containing fossilized Coelophysis footprints.

According to current knowledge of New York State fossils, during which geologic time period were these footprints most probably made?

A) CambrianB) DevonianC) CretaceousD) Triassic

• Cambrian

• Devonian

• Cretaceous

• Triassic

Which two landscape regions contain surface sedimentary bedrock of Ordovician age?

• Erie-Ontario Lowlands and Atlantic Coastal Plain

• Erie-Ontario Lowlands and St. Lawrence Lowlands

• Hudson-Mohawk Lowlands and Newark Lowlands

• Allegheny Plateau and Adirondack Mountains