02604cam a22003133u 450000100060000000300070000600500170001300600020003000700050003200800410003701000130007804000110009104100170010205000070011910000560012624500240018226400510020630000470025733600260030433700260033033800360035650000310039250503420042350802010076552012190096653400450218565300170223085600430224738013UtSlPG20260610133851.0mcr n260607r2011||||utu|||||o|||||||||||||| d a01026906 aUtSlPG 7aen2iso639-1 4aQE1 aLucas, Frederic A.q(Frederic Augustus),d1852-192910aAnimals of the Past 1aSalt Lake City, UT :bProject Gutenberg,c2011 a1 online resource :bmultiple file formats atextbtxt2rdacontent acomputerbc2rdamedia aonline resourcebcr2rdacarrier aRelease date is 2011-11-140 aIntroductory and explanatory -- Fossils, and how they are formed -- The earliest known vertebrates -- Impressions of the past -- Rulers of the ancient seas -- Bird of old -- The dinosaurs -- Reading the riddles of the rocks -- Feathered giants -- The ancestry of the horse -- The mammoth -- The mastodon -- Why do animals become extinct? aProduced by Chris Curnow, Matthew Wheaton and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive) a"Animals of the Past" by Frederic A. Lucas is a scientific publication written in the early 20th century. The work explores the history of extinct species, focusing on the formation of fossils, early vertebrates, and the various animals that once roamed the Earth. With contributions from notable artists for its illustrations, the book promises to blend technical information with engaging visuals that make paleontology accessible to a wider audience. The opening of this work sets the stage for a deep dive into the subject of paleontology, highlighting the rising public interest in the ancient life of Earth and the ongoing expeditions to discover fossil remains. Lucas introduces the concept of fossils, explaining how they are formed and the conditions necessary for preservation. He discusses various types of fossils, including impressions and natural casts, and emphasizes the difficulty in defining when and how these remains come into existence. Overall, the beginning of the book piques curiosity about the lives of early creatures, promising a blend of science and storytelling that aims to captivate both lay readers and enthusiasts of natural history. (This is an automatically generated summary.) nOriginal publication data not identified aPaleontology40uhttps://www.gutenberg.org/ebooks/38013