graptolites

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• graptolites — graptolit(h)es n. m. pl. PALEONT Groupe d animaux fossiles classés dans les hémicordés. (Marins, ils vécurent en colonies flottantes du cambrien au silurien.) ⇒GRAPTOLIT(H)ES, (GRAPTOLITES, GRAPTOLITHES)subst. masc. plur. PALÉONT. Groupe de… …   Encyclopédie Universelle

• Graptolites — …   Википедия

• Graptolithinia — Graptolites Temporal range: Mid Cambrian to Lower Carboniferous510–350 Ma …   Wikipedia

• Clonograptus — Graptolites, like this Amplexograptus from the Ordovician near Caney Springs, Tennessee are good zone fossils. A zone fossil must have a short time span but a common animal of the time. Graptolites became extinct at the end of the Devonian.… …   Wikipedia

• Graptolithina —   Graptolites Rango temporal: Cámbrico a Carbonífero Inferior …   Wikipedia Español

• Graptolite — Taxobox name = Graptolites fossil range = fossil range|510|350Mid Cambrian to Lower Carboniferous image width = 260px image caption = Fossil graptolite Tetragraptus fruticosus from the Ordovician of Australia regnum = Animalia phylum =… …   Wikipedia

• Graptolite — Graptolite …   Wikipédia en Français

• Graptolitha — Graptolite Graptolite …   Wikipédia en Français

• Graptolithes — Graptolite Graptolite …   Wikipédia en Français

• Ordovician Period — Interval of geologic time, 490–443 million years ago, the second oldest period of the Paleozoic Era. It follows the Cambrian and precedes the Silurian. During the Ordovician, many of the landmasses were aligned in the tropics. Life was dominated… …   Universalium