Books by Gerd Ernst Gerold Westermann
The Jurassic of the circum-Pacific
Jurassic-Cretaceous biochronol
Jurassic-Cretaceous biochronology and paleogeography of North America
The upper Bajocian and lower B
The upper Bajocian and lower Bathonian (Jurassic) ammonite faunas of Oaxaca, Mexico and West-Tethyan affinities
New Middle Jurassic Ammonitina
New Middle Jurassic Ammonitina from New Guinea
Ammoniten-Fauna und Stratigrap
Ammoniten-Fauna und Stratigraphie des Bathonien NW-Deutschlands
Monographie der Bajocien-Gattu
Monographie der Bajocien-Gattungen Sphaeroceras und Chondroceras (Ammonoidea)
Monographie der Otoitidae (Amm
Monographie der Otoitidae (Ammonoidea)