Rhynchotreta

Rhynchotreta

▪ fossil brachiopod genus
      extinct genus of brachiopods (lamp shells) commonly found as fossils in Silurian marine rocks (between 444 million and 416 million years old). Its small, roughly triangular shell is prominently ornamented by distinct ridges that run lengthwise to the shell margin. Because of its limited time range, Rhynchotreta is a good guide, or index, fossil for Silurian rocks and time.

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Universalium. 2010.

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Look at other dictionaries:

  • List of brachiopod genera — Taxobox name = Brachiopoda fossil range = Cambrian Recent image width = 250px image caption = Rhynchotella inconstans lived some 155 150 million years ago (mya) regnum = Animalia phylum = Brachiopoda phylum authority = Duméril, 1806 subdivision… …   Wikipedia

  • Ринхонеллиды — Somalir …   Википедия

  • ρυγχότρητα — τα, Ν (παλαιοντ.) απολιθωμένο γένος βραχιονοπόδων που έζησαν κατά το σιλούριο και χρησιμεύουν ως χαρακτηριστικά απολιθώματα για τα πετρώματα αυτής τής περιόδου. [ΕΤΥΜΟΛ. Αντιδάνεια λ., πρβλ. νεολατ. Rhynchotreta] …   Dictionary of Greek

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