Robuta

https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00221392_v32_n_pSIII71_Valencio Valencio, D.A. Palaeomagnetism of Lower Ordovician and Upper Precambrian Rocks from Argentina.... d a lower ordovician valencio palaeomagnetism upper https://katalog.bibliothek.kit.edu/bib/6079 Details for: Upper cambrian-lower ordovician Notch Peak formation in Western Utah :... OPAC der KIT-Bibliothek notch peak formation upper cambrian lower ordovician details western