Giuseppe Buono (*), Luis-Felipe Opazo Mella (*), Brett Metcalfe (**), Mena Schemm Gregory (***) & Richard Twitchett (*)
(*) School of Geography, Earth and Environmental Sciences, University of Plymouth, UK. E-mail: giuseppe.buono@plymouth.ac.uk
(**) Faculteit der Aard-en Levenswetenschappen, afdeling Aardwetenschappen, subafdeling Marine Biogeology, Vrije Universiteit, Amsterdam, Nederland.
(***) Senckenberg Forschungsinstitut und Naturmuseum, Paläozoologie III, Frankfurt am Main, Germany.