The Berriasian-Valanginian (Early Cretaceous) boundary transition at Santa Catarina Ticuá, Oaxaca state, southern Mexico: ammonites, bivalves, calpionellids and their paleobiogeographic significance - Zell, Patrick; Stinnesbeck, Wolfgang; Beckmann, Seija; Adatte, Thierry; Hering, Fabio (Journal of South American earth sciences, 2015)
Gesehen am 21.03.2017