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The Age of Reptiles was at one time the largest painting in the world, and depicts a span of nearly 350 million years in Earth's history.Painted in the Renaissance fresco secco technique, The Age of Reptiles was an important cultural influence during the 1950s–60s, images of which are often found in earlier books on paleontology, and was also the model for dinosaur toys.Perfectly intermediate between reptile (or more correctly, theropod dinosaur) and modern bird, its discovery was powerful evidence for Darwinian evolution.Archosaur derived from the Greek terms ἀρχός‚ (arkhos, "ruling") and σαῦρος‚ (sauros, "lizard"); it names any member of a major clade of tetrapods that includes birds, dinosaurs, pterosaurs, crocodiles, and their paraphyletic thecodont ancestors.Paleontologist Björn Kurtén wrote a popular intelligent layperson book with the same title.The Age of Mammals is also the name of a mural by Rudolph Zallinger for the Yale Peabody Museum (link), which follows his earlier and better known The Age of Reptiles.

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Amoeba A microscopic, single celled protozoan consisting of a naked mass of protoplasm.To this day, this mural, along with a spindle diagram of vertebrate evolution in G. Well's Science of Life, have been the two central influences that determined the way I think about deep time and the evolution of life on Earth.I think of Palaeos as in many ways simply an extension, update (in keeping with more recent discoveries) and commentary on this magnificent work.The following, inevitably incomplete, introductory glossary of terms and concepts links to other topics discussed elsewhere on this site, as well as including general topics of interest such as well-known prehistoric animals.It still needs to be modified more by removing some more technical terms, and adding more common terms.

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