columnals

См. также в других словарях:

• columnals — n. pl. [L. columna, column] (ECHINODERMATA: Crinoidea) The single row of superimposed, round or pentagonal skeletal stems …   Dictionary of invertebrate zoology

• St Cuthbert's beads — St. Cuthbert s beads (or Cuddy s beads) are circular columnals of Carboniferous crinoids which were strung together as a necklace or rosary in medieval Northumberland, and became associated with St Cuthbert. In Germany, the columnals were known… …   Wikipedia

• St. Cuthbert's beads — A thread could be passed through the central lumen of this crinoid fossil. St. Cuthbert s beads (or Cuddy s beads) are fossilised portions of the stems of Carboniferous crinoids. Crinoids are a kind of marine echinoderm which are still extant,… …   Wikipedia

• Crinoid — Crinoids Temporal range: Ordovician Recent …   Wikipedia

• Mount Carmel Junction, Utah — Mount Carmel Junction   Unincorporated area   …   Wikipedia

• Fossil — For other uses, see Fossil (disambiguation). Three small ammonite fossils, each approximately 1.5 cm across …   Wikipedia

• Lindisfarne — For other uses, see Lindisfarne (disambiguation). Coordinates: 55°40′37″N 1°47′42″W / 55.677°N 1.795°W / 55.677; 1.795 …   Wikipedia

• Cuthbert — For other uses, see Cuthbert (disambiguation). Saint Cuthbert of Durham Wall painting depicting St Cuthbert of Lindisfarne, from Durham Cathedral Bishop Born …   Wikipedia

• Triassic Period — Interval of geologic time, с 248–206 million years ago, that marks the beginning of the Mesozoic Era. Many new vertebrates emerged during the Triassic, heralding the major changes that were to occur in both terrestrial and marine life forms… …   Universalium

• pentacrinite — pen.ˈtakrəˌnīt noun ( s) Etymology: New Latin Pentacrinus + English ite 1. : a fossil of the genus Pentacrinus 2. : a Jurassic crinoid with star shaped columnals …   Useful english dictionary