Fossils. British Geological Survey. (2021, August 20). Retrieved February 26, 2022, from https://www.bgs.ac.uk/discovering-geology/fossils-and-geological-time/fossils/#:~:text=Fossils%20are%20the%20preserved%20remains,than%2010%20000%20years%20old. 

Fossils

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San Jose State University

The study of fossils and ancient life is defined as before and including the Holocene epoch. 

Paleontology / Palaeontology 

Fossils are the remains of animals and plants that have been buried and preserved in sediments such as mud and sand, under ancient rivers, lakes, or seas. Traces of life that are preserved as fossils are typically at least 10,000 years old.

Dinosaurs are a diverse group of animals of the clade Dinosauria, which is currently understood to include not only the extinct non-avian dinosaurs, but also the extant avian dinosaurs, better known as birds. They first appeared between approximately 243 and 233 million years ago, with non-avian dinosaurs going extinct approximately 66 million years ago, while at least some avian dinosaurs survived, evolving into modern birds.

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