petrification examples

Discovery Science: Earth – Petrifactions – Other Fossils and Living Fossils

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Earth Science: Petrifactions – Other Fossils and Living Fossils Fossils are the legacies of former life. They vary in size from giant skeletons of dinosaurs to tender prints of dragonfly wings or minute traces of microscopically small bacteria. Fossils document the Earth’s history, each being associated with a geological epoch prior to the Holocene. They … Read more

Discovery Science: Earth – Evolution – Fossils and Fossilization

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Earth Science: Evolution – Petrifactions On Earth, organic material decomposes and is returned to its basic inorganic elements in a continuous cycle. Occasionally, however, the remains of plants and animals from past geological eras survive through fossilization. These fossils can provide important clues to scientists about evolutionary processes and the history of the Earth. Earth … Read more