Project Gutenberg 2001-11-01 Public domain in the USA. 72 Huxley, Thomas Henry 1825 1895 Huxley, T. H. (Thomas Henry) Geological Contemporaneity and Persistent Types of Life Produced by Amy E. Zelmer, and David Widger "Geological Contemporaneity and Persistent Types of Life" by Thomas Henry Huxley is a scientific publication written in the mid-19th century, during the Victorian era. The book explores significant concepts in paleontology, particularly concerning the relationships between geological formations and the types of life that have existed over time. Huxley critiques the assumptions around geological contemporaneity and the persistence of life forms, questioning prevalent notions in the understanding of evolutionary processes based on fossil records. In his discourse, Huxley argues that although paleontology has enriched biological sciences with a vast array of factual data, it is premised on fundamental assumptions that may not hold under scrutiny. He posits that the two main assumptions—first, that the geological record began concurrently with the advent of life, and second, that geological contemporaneity equates to chronological synchrony—require careful examination. Through various examples and case studies, Huxley illustrates how paleontological evidence sometimes points to minimal change in life forms over extensive geological periods, thereby challenging the view that evolution is a linear process of progress from primitive to advanced organisms. He concludes that the existing geological and paleontological records may not be sufficient to substantiate sweeping evolutionary claims, underscoring the need for more rigorous approaches to understanding life's history on Earth. (This is an automatically generated summary.) en Life (Biology) Fossils QE Text Browsing: Science - Earth/Agricultural/Farming Browsing: Science - Genetics/Biology/Evolution 78678 78679 2024-10-02T05:24:57.877478 2023-10-02T05:18:40.184647 text/html text/html 73877 2013-01-22T15:04:22 text/html; charset=us-ascii 25502 2013-01-22T15:04:56 text/html; charset=us-ascii application/zip 118444 2024-10-02T05:25:04.018396 application/epub+zip 117239 2024-10-02T05:25:01.451416 application/epub+zip 81105 2024-10-02T05:25:00.192440 application/epub+zip 308370 2024-10-02T05:25:05.859423 application/x-mobipocket-ebook 300946 2024-10-02T05:25:03.225501 application/x-mobipocket-ebook 238354 2022-09-02T06:39:50.957495 application/x-mobipocket-ebook 66004 65978 2024-10-02T05:24:57.601457 2023-10-02T05:18:39.996616 text/plain; charset=us-ascii text/plain 65856 2009-01-06T11:53:52 text/plain; charset=us-ascii 24265 2009-01-06T11:54:34 text/plain; charset=us-ascii application/zip 19828 2024-10-02T05:25:05.981380 application/rdf+xml 23452 2024-10-02T05:25:00.732408 image/jpeg 4856 2024-10-02T05:25:00.462420 image/jpeg 117393 2024-10-02T05:24:57.886473 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://www.gutenberg.org/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia