The stratigraphical distribution and taxonomy of the trilobite Onnia in the type Onnian Stage of the uppermost Caradoc
Owen, Alan W Ingham, J K
Article
1988
Palaeontology
31
829--855
BioStor
English
London, Palaeontological Association, 1957-
BioStor: https://biostor.org/reference/165772
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