TY - JOUR T1 - First report of the bivalves <em>Schedocardia</em> and <em>Acanthocardia</em> (Mollusca, Cardiinae) from Cuba JF - bioRxiv DO - 10.1101/2020.02.03.932756 SP - 2020.02.03.932756 AU - Johanset Orihuela AU - Yasmani Ceballos Izquierdo AU - Roger W. Portell Y1 - 2020/01/01 UR - http://biorxiv.org/content/early/2020/02/04/2020.02.03.932756.abstract N2 - Herein we provide the first report of the bivalve genus Schedocardia from Cuba derived from the Madruga Formation. Although the Madruga Formation is characterized by a richly diverse fauna including echinoderms, brachiopods, and benthic and planktonic foraminiferans, bivalves were not previously reported. The Madruga Formation is considered late Paleocene in age (Thanetian), but the presence of Schedocardia suggests an age extension of the formation into the early Eocene (Ypresian). Moreover, consideration of historical factors that have affected the accepted type locality, and the outcrop discussed here, help provide an alternative interpretation for the presence of shallow water fauna therein. ER -