Paleobiogeography of early cretaceous ammonoids

• Verfasst von: Lehmann, Jens [VerfasserIn]
• Verfasst von: Ifrim, Christina [VerfasserIn]
• Titel: Paleobiogeography of early cretaceous ammonoids
• Verf.angabe: Jens Lehmann, Christina Ifrim, Luc Bulot and Camille Frau
• E-Jahr: 2015
• Jahr: 23 July 2015
• Umfang: 29 S.
• Fussnoten: Gesehen am 04.12.2018
• Titel Quelle: Enthalten in: Ammonoid paleobiology: from anatomy to ecology
• Ausgabe Quelle: 1st ed. 2015
• Ort Quelle: Dordrecht : Springer, 2015
• Jahr Quelle: 2015
• Band/Heft Quelle: (2015), Seite 229-257
• ISBN Quelle: 978-94-017-9630-9
• DOI: doi:10.1007/978-94-017-9633-0_9
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: Ammonoidea
• Sach-SW: Early cretaceous
• Sach-SW: Migration
• Sach-SW: Paleobiogeography
• Sach-SW: Provincialism
• K10plus-PPN: 1584799293

Abstract

Ammonites are often dominant elements of Early Cretaceous marine faunas. Many species are important index fossils, in some cases with worldwide distribution. We review the paleobiogeography for the Early Cretaceous. We recognize three major faunal phases in the distribution of ammonites during that interval. The first phase, directly inherited from the Late Jurassic distribution patterns, extends from the Berriasian to the earliest Barremian, when the faunas of the Boreal Realm are clearly distinguished from the Tethyan Realm. From the late early Barremian to the late Aptian, a second phase is characterized by rather uniform faunas marked by the dominance of Tethyan-derived heteromorphs in the Boreal Realm. The last phase, covering most of the Albian stage, displays a more distinctive differentiation between Boreal and Tethyan faunas. The late Barremian marks the onset of the Austral Realm, originating from faunas that originally evolved in the Indo-Pacific Subrealm of the Tethyan Realm.