User:Abyssal/Portal:Neogene

The Neogene Portal Introduction Selected article on the Neogene world and its legacies Modern marchantiophytes. The Marchantiophyta are a division of non-vascular bryophyte land plants commonly referred to as hepatics or liverworts. Like other bryophytes, they have a gametophyte-dominant life cycle, in which cells of the plant carry only a single set of genetic information. It is estimated that there are about 9000 species of liverworts. Some of the more familiar species grow as a flattened leafless thallus, but most species are leafy with a form very much like a flattenedmoss. Leafy species can be distinguished from the apparently similar mosses on the basis of a number of features, including their single-celled rhizoids. Leafy liverworts also differ from most (but not all) mosses in that their leaves never have a costa and may bear marginal cilia (very rare in mosses). Other differences are not universal for all mosses and liverworts, but the occurrence of leaves arranged in three ranks, the presence of deep lobes or segmented leaves, or a lack of clearly differentiated stem and leaves all point to the plant being a liverwort. Liverworts are typically small, usually from 2–20 mm wide with individual plants less than 10 cm long, and are therefore often overlooked. However, certain species may cover large patches of ground, rocks, trees or any other reasonably firm substrate on which they occur. They are distributed globally in almost every available habitat, most often in humid locations although there are desert and arctic species as well. (see more...) Did you know? Holotype specimen of Oligochlora semirugosa preserved in amber. ... that the extinct sweat bee genus Oligochlora contains six species all known from the Dominican amber deposits on Hispaniola? ... that the fossil horse Scaphohippus became extinct when tectonic barriers between the Great Plains and Great Basin of North America disappeared about 13 million years ago? ... that the only male "sweat bee" to have been documented from Dominican amber is the type specimen for the extinct Eickwortapis? ... that unlike living rorqual whales, the late Miocene genus Plesiobalaenoptera was probably not capable of ram feeding? ... that a fossil flower of the extinct palm Roystonea palaea shows damage possibly made by a bat or bird? Need help? Do you have a question about Abyssal/Portal:Neogene that you can't find the answer to? Consider asking it at the Wikipedia reference desk. Selected image The painting Laelaps by Charles R. Knight depicts two Dryptosaurus fighting. Photo credit: User:Durova Selected article on the Neogene in human science, culture and economics Edward Drinker Cope (left) and Othniel Charles Marsh (right). Bone Sharps, Cowboys, and Thunder Lizards: A Tale of Edward Drinker Cope, Othniel Charles Marsh, and the Gilded Age of Paleontology (2005) is a graphic novel written by Jim Ottaviani and illustrated by the company Big Time Attic. The book tells a slightly fictionalized account of the Bone Wars, a period of intense excavation, speculation, and rivalry which led to a greater understanding of dinosaurs in the western United States. This novel is the first semi-fictional work written by Ottaviani; previously, he had taken no creative license with the characters he depicted, portraying them strictly according to historical sources. Bone Sharps follows the two scientists Edward Drinker Cope and Othniel Marsh as they engage in an intense rivalry for prestige. Ottaviani has Cope and Marsh interact and meet many important figures of the Gilded Age, from P. T. Barnum to U.S. Grant, as the two scientists pursue their hotheaded and sometimes illegal acquisitions of fossils. Unlike in his previous books, "the scientists are the bad guys this time". Upon release, the novel received praise from critics for its exceptional historical content, although some reviewers wished more fiction had been woven into the story. (see more...) Topics Geochronology - Neogene (Miocene - Pliocene) Neogene landmasses - Major Neogene events - Neogene biota appearances - Fossil sites - Stratigraphic units - History - History of paleontology - Timeline of paleontology Researchers - Culture - Treatise on Invertebrate Paleontology - Vertebrate Paleontology Subcategories Neogene Neogene by continent Neogene geochronology Neogene events Neogene geology Neogene life Neogene paleogeography Neogene stubs Quality Content Featured Neogene articles - None yet Good Neogene articles - Nonet yet Things you can do Here are some tasks awaiting attention: Stubs : Neogene stubs WikiProjects Earth science Geology Paleontology Related content Time Earth sciences Paleontology Extinct and Endangered Species Paleozoic Mesozoic Cenozoic Paleogene Quaternary Associated Wikimedia The following Wikimedia Foundation sister projects provide more on this subject: Commons Free media repository Wikibooks Free textbooks and manuals Wikidata Free knowledge base Wikinews Free-content news Wikiquote Collection of quotations Wikisource Free-content library Wikiversity Free learning tools Wiktionary Dictionary and thesaurus ¤ Category:Cenozoic portals Category:Geologic time portals