[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/sigillaria-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki40\/sigillaria-wikipedia\/","headline":"Sigillaria – Wikipedia","name":"Sigillaria – Wikipedia","description":"From Wikipedia, the free encyclopedia Extinct genus of spore-bearing plants Sigillaria is a genus of extinct, spore-bearing, arborescent lycophyte, known","datePublished":"2021-01-22","dateModified":"2021-01-22","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/e\/e3\/Sigillariaceae_-_Sigillaria_trigona.JPG\/220px-Sigillariaceae_-_Sigillaria_trigona.JPG","url":"https:\/\/upload.wikimedia.org\/wikipedia\/commons\/thumb\/e\/e3\/Sigillariaceae_-_Sigillaria_trigona.JPG\/220px-Sigillariaceae_-_Sigillaria_trigona.JPG","height":"221","width":"220"},"url":"https:\/\/wiki.edu.vn\/en\/wiki40\/sigillaria-wikipedia\/","about":["Wiki"],"wordCount":1417,"articleBody":"From Wikipedia, the free encyclopediaExtinct genus of spore-bearing plantsSigillaria is a genus of extinct, spore-bearing, arborescent lycophyte, known from the Carboniferous and Permian periods. It is related to the more famous Lepidodendron, and more distantly to modern quillworts.Table of ContentsFossil records[edit]Species[edit]Description[edit]Gallery[edit]Bibliography[edit]References[edit]External links[edit]Fossil records[edit]This genus is known in the fossil records from as early as the Middle Devonian or the Late Carboniferous period [1] but dwindled to extinction in the Early Permian period (age range: from 383.7 to 254.0 million years ago).[2] Fossils are found in Great Britain, United States, Canada, China, Korea, Tanzania and Zimbabwe.[3]Species[edit]  Species within this genus include:[4]S.alveolaris Brongniart (1828)S.barbata Weiss (1887)S.bicostata Weiss (1887)S.boblayi Brongniart (1828)S.brardii Brongniart (1828)S.cancriformis Weiss (1887)S.cristata Sauveur (1848)S.cumulata Weiss (1887)S.davreuxii Brongniart (1828)S.densifolia Brongniart (1836)S.elegans Sternberg (1825)S.elongata Brongniart (1824)S.fossorum Weiss (1887)S.hexagona Brongniart (1828)S.loricata Weiss (1887)S.mammiliaris Brongniart (1824)S.menardi Brongniart (1828)S.micaudi (Zeller (1886-1888)S.monostigma Lesquereux (1866)S.orbicularis Brongniart (1828)S.ovata Sauveur (1848)S.pachyderma Brongniart (1828)S.principes Weiss (1881)S.reticulata Lesquereux (1860)S.rugosa Brongniart (1828)S.saulii Brongniart (1836)S.schotheimiana Brongniart (1836)S.scutellata Brongniart (1822)S.sillimanni Brongniart (1828)S.tesselata Brongniart (1828)S.transversalis Brongniart (1828)S.trigona Sternberg (1826)S.voltzii Brongniart (1828)Description[edit]Sigillaria was a tree-like plant reaching a height up to 30 meters,[1] with a tall, single or occasionally forked trunk[2] that lacked wood.  Support came from a layer of closely packed leaf bases just below the surface of the trunk, while the center was filled with pith. The long, thin grasslike leaves[5] were attached directly to the stem and grew [1] in a spiral along the trunk.[2] The old leaf bases expanded as the trunk grew in width, and left a diamond-shaped pattern, which is evident in fossils. These leaf scars were arranged in vertical rows.[1] The trunk had photosynthetic tissue on the surface, meaning that it was probably green.The trunk was topped with a plume of long, grass-like, microphyllous leaves,[5] so that the plant looked somewhat like a tall, forked bottle brush. The plant bore its spores (not seeds) in cone-like structures [5] attached to the stem.[2][6]Sigillaria, like many ancient lycopods, had a relatively short life cycle – growing rapidly and reaching maturity in a few years. Some researchers have suggested that Sigillaria was monocarpic, meaning that it died after reproduction, though this is not proven.[5] It was associated with Lepidodendron, the scale tree, in the Carboniferous coal swamps.[1]Gallery[edit]Bibliography[edit]William A. DiMichele, Richard M. Bateman: The Rhizomorphic Lycopsids: A Case-Study in Paleobotanical Classification. Systematic Botany, 1996, Band 21, S. 535-552.Thomas N. Taylor, Edith L. Taylor, Michael Krings: Paleobotany. The Biology and Evolution of Fossil Plants. Second Edition, Academic Press 2009, ISBN\u00a0978-0-12-373972-8. S. 303-307J. W. Sir Dawson – On the structure and affinities of Sigillaria, Calamites and Calamodendron – Paperback \u2013 August 16, 2011 ISBN\u00a01175560871Silva Pineda, A. (2003). “Flora del P\u00e9rmico de la regi\u00f3n de Iz\u00facar de Matamoros, Puebla”. En Soto, L. A. Agust\u00edn Ayala-Casta\u00f1ares: universitario, impulsor de la investigaci\u00f3n cient\u00edfica. UNAM. p.\u00a0371. ISBN\u00a09789703207893References[edit]External links[edit]Wikimedia Commons has media related to Sigillaria."},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/sigillaria-wikipedia\/#breadcrumbitem","name":"Sigillaria – Wikipedia"}}]}]