Paleontology

Plant Fossils

Fern Fossil

E.D. McKee, Courtesy United States Geological Survey Photographic Library, Image Source: Earth Science World Image Bank

Algae Fossils

© Larry Fellows, Image Source: Earth Science World Image Bank

Algae Fossil

© Larry Fellows, Image Source: Earth Science World Image Bank

Fossilized Tree Branch

© Christopher Keane, American Geological Institute, Image Source: Earth Science World Image Bank

Mold of a Tree

© John Ballard, Image Source: Earth Science World Image Bank

Fossil Leaf

Courtesy National Park Service, Image Source: Earth Science World Image Bank

Fossil Leaf

Courtesy National Park Service, Image Source: Earth Science World Image Bank

Petrified Wood

© Michael Collier, Image Source: Earth Science World Image Bank

Petrified Forest

© Christopher Keane, American Geological Institute, Image Source: Earth Science World Image Bank

Petrified Wood

Courtesy National Park Service, Image Source: Earth Science World Image Bank

Petrified Tree Stumps

Courtesy National Park Service, Image Source: Earth Science World Image Bank