Paris, Société Géologique de France, 1955. 4to (32.7 x 25.3 cm). 47 pp.; two plates with explanatory text leaves, two text illustrations. Later wrappers with typed title.

A rarely-seen, important revision, well-illustrated, and an essential addition to the work by the French palaeontologist and malacologist Pierre Bertrand Marie Reynès (1829–1877). Reynès may be regarded as the world's first ammonite specialist. Published in the society's Mémoires. Written by the British palaeontologist Desmond Thomas Donovan (1921-2019). Uncut. Strip with title author's name taped to lower spine; wrapper protective rather than elegant, but, otherwise, a very good, clean copy.