biozone
the zone capable of supporting life

Dictionary of ichthyology. 2009.

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  • biozone — ● biozone nom féminin Unité d un ensemble de couches géologiques, déterminée par les fossiles qu elle contient …   Encyclopédie Universelle

  • Biozone — Une biozone une unité stratigraphique définie par le contenu biologique des sédiments (ou biostratigraphie). Il est possible de distinguer : des biozones d association des biozones d extension des biozones d abondance des biozones d… …   Wikipédia en Français

  • biozone — ▪ geology       stratigraphic unit consisting of all the strata containing a particular fossil and, hence, deposited during its existence. The extent of the unit in a particular place, on the local stratigraphic range of the fossil plant or… …   Universalium

  • Biozone — Biostratigraphic units or Biozones are intervals of geological strata that are defined on the basis of their characteristic fossil taxa. A biostratigraphic unit may be defined on the basis of a single taxon or combinations of taxa, on relative… …   Wikipedia

  • biozone — noun A biostratigraphic unit: an interval of geological strata defined on the basis of its characteristic fossil taxa …   Wiktionary

  • biozone — bio·zone …   English syllables

  • biozone — ˈbīō+ˌ noun Etymology: bi (II) + zone : the temporal and stratigraphic range of a kind of organism (as of a species) as reflected by its occurrence in fossiliferous rocks …   Useful english dictionary

  • Silurian Period — Interval of geologic time, 443–417 million years ago. The third period of the Paleozoic Era, the Silurian follows the Ordovician Period and precedes the Devonian. It marks the first appearance of land plants and jawed fishes. The continents were… …   Universalium

  • Cambrien C — Cambrien moyen ère Paléozoïque Permien Carbonifère Dévonien Silurien Ordovicien …   Wikipédia en Français

  • Cambrien Moyen — ère Paléozoïque Permien Carbonifère Dévonien Silurien Ordovicien …   Wikipédia en Français

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