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Geological Time Scale in Snakes

Gigantophis

10.65 meters

1.15 Billion Years Ago

Egyptian Cobra

1.98 Meters

Titanoboa

Earliest Fossil Record

3.5 Billion Years Ago

Green Anaconda

Hognose Snake

0.47 Meters

5.48 Meters

Scaless Texas Rat Snake

0.58 Meters

14 Meters

Texas Rat Snake

0.77 Meters

Dekay's Brown Snake

0.2 Meters

Bull Snake

1.64 Meters

Blue Beauty Snake

1.29 Meters

Carpet Python

1.37 Meters

Ball Python

1.16 Meters

Ball Python

1.01 Meters

Leptotyphlops carlae

0.17 Meters

575 Million Years Ago

287.5 Million Years Ago

Burmese Python

6.39 Meters

Oldest Fossil Primate

55 Million Years Ago

Reticulated Python

End Cretaceous Mass Extinction

65 Million Years Ago

Banded Iron Formation Deposition Ends

1.8 Billion Years Ago

Snowball Earth

650 Million

7.3 Meters

End Ordivician

Mass Extinction

450 Million Years Ago

First Predators

540 Million Years Ago

Late Devonian Mass Extinction

354 Million Years Ago

First Trees and Forests

380 Million Years Ago

First Land Plants 425 Million Years

Ago

Oldest Bird 155 Million Years Ago

End Triassic Mass Extinction

206 Million Years Ago

End Permian Mass Extinction

252 Million Years Ago

4.6 Billion Years Ago

Formation of Earth

NOW- 0 Meters

2.3 Billion Years Ago

First Fossil Eukaryotes

2.1 Billion Years Ago

Great Oxygen Event

2.4 Billion Years Ago

Image by Tom Mooring

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