Glossopteris

▪ fossil plant genus
      genus of fossilized woody plants (plant) known from rocks that have been dated to the Permian (Permian Period) and Triassic periods (Triassic Period) (roughly 300 to 200 million years ago), deposited on the southern supercontinent of Gondwana. Glossopteris occurred in a variety of growth forms. Its most common fossil is that of a tongue-shaped leaf with prominent midrib and reticulate venation. Glossopteris leaves are commonly found in thick mats, and thus some authorities speculate that the plants were deciduous. It reproduced by seeds (seed and fruit), and a tremendous variety of both ovule-bearing and pollen-bearing reproductive structures are borne on characteristic Glossopteris leaves. Before the last of this group finally succumbed to extinction at the end of the Triassic Period, Glossopteris became one of the major features of the flora of Gondwana. The distribution of this plant was among the first evidence for continental drift.

Nan Crystal Arens
 

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Universalium. 2010.

Look at other dictionaries:

  • glossopteris — ● glossopteris nom masculin Ptérido sperme fossile, élément caractéristique de la flore à glossopteris du permo trias de l hémisphère indo austral …   Encyclopédie Universelle

  • glossopteris — glossoptéris s.m. Gen de ferigă fosilă din ordinul filiaceelor, cu frunze mari ligulate sau lanceolate. (< fr. glossoptéris) Trimis de blaurb, 13.09.2007. Sursa: MDN …   Dicționar Român

  • Glossoptĕris — (Brognt., Petref.), Gattung der fossilen Farrenkräuter …   Pierer's Universal-Lexikon

  • Glossopteris — Taxobox fossil range = Permian image width = 250px image caption = Fossil of the gymnosperm Glossopteris (dark green) found in all of the southern continents provide strong evidence that the continents were once joined domain = Eukaryota unranked …   Wikipedia

  • Glossopteris — Glossopteridales Zeitraum Perm bis Trias Fundorte Australien, Afrika, Südamerika, Antarktika Systematik ohne Rang: Charophyta Reich: P …   Deutsch Wikipedia

  • Glossopteris —   Glossopteris Escala temporal: Pérmico Clasificación …   Wikipedia Español

  • Glossopteris — Cette page d’homonymie répertorie les différents sujets et articles partageant un même nom. Glossopteris est un nom de genre attribué à plusieurs types de plantes. Glossopteris Brongn. est un genre de plantes fossiles. Celles ci appartiennent au… …   Wikipédia en Français

  • Glossopteris — Glossọpteris   [zu griechisch ptéris »Farn«] der, , fossiler baumförmiger Samenfarn hauptsächlich aus dem Karbon und Perm der Südhalbkugel, der im Jura ausstarb; bis 30 cm lange, zungenförmige, maschig geäderte Blätter mit Mittelnerv, die… …   Universal-Lexikon

  • glossopteris —  ̷ ̷ˈsäptərə̇s noun Etymology: New Latin, from gloss + pteris 1. capitalized : a genus of chiefly Permian and Triassic fossil ferns or fernlike plants characterized by thick entire fronds with anastomosing veins 2. es : any plant of the genus… …   Useful english dictionary

  • glossopteris — (лат.) папоротникообразные растения …   Словарь ботанических терминов

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