A 100 metre succession of Upper Upper Albian sediments in the Montlaux section (les Gipieres-Champfleury), Alpes-de-Haute Provence, France yielded a series of ammonites that provide unequivocal evidence for a Mortoniceras (Subschloenbachia) rostratum ammonite Zone succeeded by a Mortoniceras (Subschloenbachia) perinflatum ammonite Zone. On this basis, and evidence from successions described previously, the classic Upper Upper Albian Stoliczkaia dispar Zone is replaced by a sequence, from oldest to youngest, of Mortoniceras (Mortoniceras) fallax, Mortoniceras (Subschloenbachia) rostratum, Mortoniceras (Subschloenbachia) perinflatum and Arrhaphoceras (Praeschloenbachia) briacensis Zones. The following species are described: Anagaudryceras sacya (FORBES, 1846), Desmoceras latidorsatum (MICHELIN, 1838), Puzosia (Puzosia) mayoriana (D'ORBIGNY, 1841), Pleurohoplites renauxianus (D'ORBiGNY, 1840), Arrhaphoceras sp., Discohoplites simpex WRIGHT & WRIGHT, 1949, Discohoplites sub-falcatus (SEMENOV, 1899), Mortoniceras (Subschloenbachia) rostratum (J.SOWERBY, 1817), Mortoniceras (Subschloenbachia) perinflatum (SPATH, 1922b), Stoliczkaia (Stoficzkaia) dispar (D'ORBIGNY, 1841), Stoliczkaia (Stoliczkaia) clavigera NEUMAYR, 1875, Anisoceras armatum (J.SOWERBY, 1817), Anisoceras per-armatum PICTET & CAMPICHE, 1861, Anisoceras pseudoelegans PICTET & CAMPICHE, 1861, Idiohamites elegantulus SPATH, 1939, Hamites venetzianus PICTET, 1847, Lechites (L.) gaudini (PICTET & CAMPICHE, 1861), Lechites (L.) moreti BREISTROFFER, 1936, Mariella (Mariella) bergeri (BRONGNLART, 1822), Ostlingoceras (Ostlingoceras) puzosianum (D'ORBIGNY, 1842), and Scaphites (Scaphites) sp.
