Ypresian (Lower Eocene) crabs (Decapoda, Crustacea) from Belgium.
1993. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique, Sciences de la Terre Vol. 63; pp. 261-270, 3 fig. 2 plts. Orig. extract, stapled, very good, 4to.
Cambrian stratigraphy and paleontology near Caborca, northwestern Sonora, Mexico.
1952. Smiths. Misc. Coll. Vol. 119, Nr. 1; 184 pp. 9 fig. 31 plts. with phot. of views (5) and fossils, incl. brachiopods (3) and trilobites (18 plts.) Orig. wrps. with very faint stamp, very good, contents uncut.