Calamites

Calamites

▪ fossil plant genus
 genus of tree-sized, spore-bearing plants (plant) that lived during the Carboniferous (Carboniferous Period) and Permian periods (Permian Period) (about 360 to 250 million years ago). Calamites had a well-defined node-internode architecture similar to modern horsetails (horsetail), and its branches and leaves (leaf) emerged in whorls from these nodes. Its upright stems (stem) were woody and connected by an underground runner; however, the central part of the stem was hollow, and fossils (fossil) of Calamites are commonly preserved as casts of this hollow central portion. Calamites grew to 20 metres (about 66 feet) tall, standing mostly along the sandy banks of rivers, and had the ability to sprout vigorously from underground rhizomes (rhizome) when the upper portions of the plant were damaged. The remains of Calamites and other treelike plants from the Carboniferous Period were transformed into the coal used as a source of energy today. A virtually identical plant from the Triassic Period (about 250 to 200 million years ago) is called Neocalamites.

Nan Crystal Arens
 

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Look at other dictionaries:

  • Calamites — † …   Wikipédia en Français

  • Calamites — Saltar a navegación, búsqueda ? Calamites Rango fósil: Carbonífero Estado de conservación Fósil Clasificación científica …   Wikipedia Español

  • calamites — calamítes s. n. Trimis de siveco, 10.08.2004. Sursa: Dicţionar ortografic  CALAMÍTES s. m. arbore uriaş fosil din încrengătura criptogamelor vasculare. (< fr. calamite) Trimis de raduborza, 15.09.2007. Sursa: MDN …   Dicționar Român

  • Calamītes — Calamītes, s. Equisetinen …   Meyers Großes Konversations-Lexikon

  • Calamites — Calamītes, fossile (bes. karbonische) baumartige Schachtelhalme …   Kleines Konversations-Lexikon

  • calamites — (izg. kalàmites) ž mn DEFINICIJA bot. geol. izumrlo krupno visoko drveće, trajalo od gornjeg karbona do perma ETIMOLOGIJA grč. kalamítēs: poput trske ≃ kálamos: trska …   Hrvatski jezični portal

  • Calamites — Taxobox fossil range = Carboniferous early Permian image width = 280px image caption = A range of Calamites specimens, illustrating the different appearance of fossils preserved under different taphonomic modes. regnum = Plantae divisio =… …   Wikipedia

  • Calamites — † Calamit …   Wikipédia en Français

  • Calamites — Kalamiten Versteinerung eines Kalamiten aus dem Karbon Zeitraum Oberkarbon bis Perm (Cisural) ca. 318 bis 272 Mio. Jahre Fossilfundorte …   Deutsch Wikipedia

  • CALAMITES Styrax seu Storax — dictus est Graecis, non quod arundinibus reconditus haberetur, ne exspiraret, ut quidam volunt; storax enim diutissime odorem servat, nec secus ac myrrha et alia gummium odoratorum genera, in masla afferebatur, et in pellibus hircinis ac saccis:… …   Hofmann J. Lexicon universale

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