View of Are the Upper Jurassic ammonite genera Progeronia Arkell, 1953 and Hugueninsphinctes Atrops, 1982 a dimorphic pair? A fresh look upon their type species

Return to Article Details Are the Upper Jurassic ammonite genera Progeronia Arkell, 1953 and Hugueninsphinctes Atrops, 1982 a dimorphic pair? A fresh look upon their type species Download Download PDF