Geologic Time Scale Crossword

Longest subdivision in geologic scale
It is a scale that divides earths history based on life forms
It is next to the longest Subdivision marked by major changes in the fossil record
It is the Shortest Subdivision in the time scale
This Era is based from latin name for wales
This division is based on the types of life existing at the time
Based from the latin word "creta" means Chalk
what Era is also called as the "Age of the Mammals "
Under the Mesozoic Era in what period does the First Bird appear?
He was a scottish Physician and Geologist, He proposed a theory of " uniformitarianism "
He was a surveyor , and the first to understand that certain rock units could be identified
Who Proposed the Theory of Natural selection
It is were Life forms in warm seas can support life, The existence of phyla
It is were the Amphibians, evergreen and ferns appear
In what era does the T-rex develops
It is the period where the first dinosaurs and mammals appear
it is the period were Pangaea forms
In this Epoch the hominids Develop
Under this period Tropical plants dominate
Also known as "Age of invertebrates "
Under this Epoch The mastadons become extinct
Also known as guide fossils
It is a common method used to date anything that was once alive
This Method can produce an actual age in years.
It is a Scenario when there is no more members of particular species remain
A Kind of Fossil When Sediments bury an organism and Hardens into a rock
A Period where Human Culture Flourishes
These are Episodes of erosion or non deposition between layers
Sediment is deposited on top of eroded volcanic or metamorphic rock
He proposed to estimate the age of the earth using salt content of the oceans,
What is the oldest fossils preserved remainswhich are layers of lithified blue-green algae, dating to approximately 3.5 billion years before present.
 First millipede fossils and sea scorpions (Euryptides) found in this period
Cyanobacteria begins producing free oxygen (photosynthesis)
Age of the Fish
Modern North America begins to form
How many Eras are there in geologic time scale
Horses, mastadons, mammoths, tigers, and camels live in South Carolina
-Beginning of the construction of South Carolina
Appalachians uplift; erosion increases
Diverse array of animals develop, including whales, rhinos, and elephants