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It was formally defined by the International Commission on Stratigraphy in 2018. [5] Its base is defined by the first appearance of the trilobite species Oryctocephalus indicus ; it ends with the beginning of the Drumian Stage, marked by the first appearance of the trilobite Ptychagnostus atavus around 504.5 million years ago.
Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. [1] This includes the study of body fossils, tracks (), burrows, cast-off parts, fossilised feces (), palynomorphs and chemical residues.
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Paleontology or palaeontology is the study of prehistoric life forms on Earth through the examination of plant and animal fossils. [1] This includes the study of body fossils, tracks ( ichnites ), burrows , cast-off parts, fossilised feces ( coprolites ), palynomorphs and chemical residues .
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Vertebrate Palaeontology is a basic textbook on vertebrate paleontology by Michael J. Benton, published by Blackwell's. It has so far appeared in five editions, published in 1990, 1997, 2005, 2014, and 2024. It is designed for paleontology graduate courses in biology and geology as well as for the interested layman.
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The First 75 Years: a history of the Paleontological Research Institution (2007) Ithaca is Gorges: A Guide to the Geology of the Ithaca Area, 4th ed. (2007) Dinosaurs in Pop Culture (2007) Charles Darwin: After the Origin (2009) Field Guide to the Cayuga Lake Region: Its Flora, Fauna, Geology, and History (2009) Cecil's Colossal Journey Through ...