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Paleoclimatology (thesaurus)

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Avonian  

Definition

  • Avonian, in geology, the name proposed by Dr A. Vaughan in 1905 (Q.J.G.S. vol. lxi. p. 264) for the rocks of Lower Carboniferous age in the Avon gorge at Bristol. The Avonian stage appears to embrace precisely the same rocks and fossilzones as the earlier designation "Dinantien" (see Carboniferous System); but its substages, being founded upon different local conditions and a different interpretation of the zonal fossils, do not correspond exactly with those of the French and Belgian geologists. (Adapted from: https://theodora.com/encyclopedia/a2/avonian.html)

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http://data.loterre.fr/ark:/67375/QX8-68W9PB9S-1

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