Person: Westermann, Gerd E.G.
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Westermann
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Gerd E.G.
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Publication Middle Jurassic ammonite distribution and the affinities of the Andean Faunas(1976) Westermann, Gerd E.G.; Riccardi, Alberto CarlosPublication The Upper-Bajocian ammonite Strenoceras in Chile: first circum-Pacific record of the subfurcatum Zone(1980) Riccardi, Alberto Carlos; Westermann, Gerd E.G.Publication Middle Jurassic ammonoid fauna and biochronology of the Argentine-Chilean Andes Part II: Bajocian Stephanocerataceae(1979) Westermann, Gerd E.G.; Riccardi, Alberto CarlosPublication Middle Jurassic ammonoid fauna and biochronology of the Argentine-Chilean Andes Part I: Hildocerataceae(1972) Westermann, Gerd E.G.; Riccardi, Alberto CarlosPublication The valanginian Dobrodgeiceras Nikolov [Ammonitina] from Perú(1970) Riccardi, Alberto Carlos; Westermann, Gerd E.G.Publication Biostratigraphy of the upper Bajocian-middle Callovian (Middle Jurassic), South America(1991) Riccardi, Alberto Carlos; Westermann, Gerd E.G.; Elmi, SergePublication The Lower Cretaceous Ammonitina Olcostephanus, Leopoldia, and Favrella from West Central Argentina(1971) Riccardi, Alberto Carlos; Westermann, Gerd E.G.; Levy, R.Publication Jurassic stage boundaries in South America(1989) Westermann, Gerd E.G.; Riccardi, Alberto CarlosPublication Edad y taxonomÃa del género Podagrosiceras Maubeuge et Lambert [Ammonitina, Jurásico Medio](1975) Westermann, Gerd E.G.; Riccardi, Alberto CarlosPublication Middle Jurassic ammonite evolution in the Andean Province and emigration to Tethys(1985) Riccardi, Alberto Carlos; Westermann, Gerd E.G.