Cordaitales


Cordaitales

▪ fossil plant order
      an order of coniferophytes (phylum, sometimes division, Coniferophyta), fossil plants dominant during the Carboniferous Period (359 million to 299 million years ago) directly related to the conifers (order Coniferales). Many were trees up to 30 metres (100 feet) tall, branched, and crowned with large, leathery, strap-shaped leaves. Three families are included—Pityaceae, Poroxylaceae, and Cordaitaceae—of which the Cordaitaceae is the best known. Its genera Cordaites and Cordaianthus are represented by fossil leaves, branches, and loosely formed cones, investigations of which have led to the formulation of the cordaite-conifer evolutionary sequence through the primitive conifer family Lebachiaceae (see Lebachia). The Pityaceae, from the Early Carboniferous, and the Poroxylaceae, geologically later but more primitive in wood structure, are closer in many respects to the seed ferns (pteridosperms). They are provisionally grouped with the Cordaitales until evidence displaces them.

* * *


Universalium. 2010.

Look at other dictionaries:

  • Cordaitales — Cordaites lungatus, Blattabdrücke Zeitraum Mississippium bis Perm 360 bis 250 Mio. Jahre Systematik …   Deutsch Wikipedia

  • Cordaitales — n. an order of extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian; probably extinct since the Mesozoic. Syn: order {Cordaitales}. [WordNet 1.5] …   The Collaborative International Dictionary of English

  • Cordaitales — Cordaites lungatus Scientific classification Kingdom: Plantae …   Wikipedia

  • Cordaitales — noun extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era • Syn: ↑order Cordaitales • Hypernyms: ↑plant order • Member Holonyms:… …   Useful english dictionary

  • cordaitales — cor·dai·ta·les …   English syllables

  • Cordaitales ou cordaites — Cordaites Cordaitales …   Wikipédia en Français

  • order Cordaitales — noun extinct plants having tall arborescent trunks comparable to or more advanced than cycads; known from the Pennsylvanian period; probably extinct since the Mesozoic era • Syn: ↑Cordaitales • Hypernyms: ↑plant order • Member Holonyms:… …   Useful english dictionary

  • Кордаитовые — (Cordaitales)         порядок вымерших голосеменных растений. Части К. описывают под разными родовыми названиями: листья Cordaites, Rufloria, собрания стробилов («цветков») Cordaianthus; семена Cardio carpus; древесину Dadoxylon, Araucarioxylon;… …   Большая советская энциклопедия

  • Cordaites — Cordaitales Feuilles …   Wikipédia en Français

  • Ginkgoales — Ginkgoites huttoni, fossiler Blattabdruck, Mittlerer Jura Systematik ohne Rang: Charophyta Reich …   Deutsch Wikipedia