Trilobites of the Henllan Ash, Arenig Series, Merioneth
Whittington, Harry Blackmore
Article
1966
Bulletin of the British Museum (Natural History) Geology
11
489--505
BioStor
English
London, BM(NH),
BioStor: https://biostor.org/reference/118740
In copyright. Digitized with the permission of the rights holder
http://biodiversitylibrary.org/permissions
http://creativecommons.org/licenses/by-nc-sa/4.0/
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