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Ashgillian

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Ashgillian [ash′gil·yən]
(geology)
A European stage of geologic time in the Upper Orodovician (above Upper Caradocian, below Llandoverian of Silurian).
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Brachiopods from the Jerrestad Mudstone (Early Ashgillian, Ordovician) from a Boring in Southern Sweden.
The succession of Hirnantian events based on data from Baltica: ... by Kaljo, Dimitri; Hints, Linda; Mannik, Peep; Nolvak, Jaak / Estonian Journal of Earth Sciences
The lithological variation, a great number of lithostratigraphical units and uneven palaeontological data have complicated the correlation and compilation of models of basin development during the middle Ashgillian Pirgu time.
The Pirgu regional stage (Upper Ordovician) in the East Baltic: ... by Hints, Linda; Oraspold, Asta; Nolvak, Jaak / Proceedings of the Estonian Academy of Sciences: Geology
Ashgillian graptolite fauna of the Yangtze region and the biogeographical distribution of diversity in the latest Ordovician.
The regional stratotype section and point for the base of the ... by Koren, Tatyana N.; Sobolevskaya, Rimma F. / Estonian Journal of Earth Sciences
 
 
 
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