John S. Peel
Department of Earth Sciences (Palaeobiology), Uppsala University, Uppsala, Sweden
GFF ,2018, Vol. 140, No. 3, 249–253
A new look at Pleurotomaria perlata Hall, 1852 (Gastropoda) from the Silurian of Laurentia
peelgastropmollusilurpaleozoic at Pleurotomaria perlata Hall 1852 Gastropodan of Laurentia.pdf
about 1,1 MB
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brief discusions on /comparisons with : Liospira,Pycnotrochus