Ptychagnostus Jaekel 1909 And Glyptagnostus Whitehouse 1936 Trilobita Proposed Conservation Of Accepted Usage
Shergold, J H Laurie, J R
Article
1991
The Bulletin of zoological nomenclature
48
200--202
BioStor
London International Trust for Zoological Nomenclature
BioStor: https://biostor.org/reference/75841 DOI: https://doi.org/10.5962/bhl.part.723
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