Julivert, M. et al. — Colloque Ordovicien-Silurien, Brest, Septembre 1971.

1972 [20], 61, [40] p., num. figs, 6 pls, small 4to, paperbound. Ex library Dr. A. Brouwer (with his signature). Includes papers on palaeographic evolution of NW Spain & the glaciation of West Africa, and the following palaeontological papers: Macomber, Simultaneous occurrence of late ordovician brachiopod species in Britain and North America / Babin & Robardet, Quelques paléotaxodontes (Mollusques, Bivalves) de lâÇÖOrdovicien supérieur de St. Nicolas de Pierrepont (Normandie) / Chauvel & Le Menn, Echinodermes de lâÇÖOrdovicien supérieur de Coat-Carrec, Argol (Bretagne).