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Verfasst von:Ifrim, Christina [VerfasserIn]   i
 Porras Múzquiz, Héctor [VerfasserIn]   i
 Stinnesbeck, Wolfgang [VerfasserIn]   i
Titel:Ammonoids, their biozonation and their palaeobiogeographic relation across the Turonian-Coniacian boundary in northern Coahuila, Mexico
Verf.angabe:Christina Ifrim, Hector Porras Múzquiz, Wolfgang Stinnesbeck
E-Jahr:2019
Jahr:21 March 2019
Umfang:16 S.
Fussnoten:Gesehen am 22.10.2019
Titel Quelle:Enthalten in: Cretaceous research
Ort Quelle:London : Academic Press, 1980
Jahr Quelle:2019
Band/Heft Quelle:102(2019), Seite 170-195
ISSN Quelle:0195-6671
Abstract:The Rosario section in northern Coahuila, northeastern Mexico, contains a complete record of distal shelf deposits across the Turonian-Coniacian boundary. Here we describe the ammonoids, the biozonation based on these cephalopods, their taphonomy and some palaeobiogeographic relations. Gaudryceras mite, Peroniceras (P.) tridorsatum, P. (P.) dravidicum, Forresteria (F.) alluaudi, F. (F.) brancoi, F. (F.) peruana, Baculites sweetgrassensis, B. yokoyamai, Neocrioceras maximum, Schlueterella stinnesbecki, Scaphites (S.) frontierensis, S. (S.) preventricosus, S. (S.) sagensis, and S. (S.) uintensis were identified at El Rosario and a nearby complementary outcrop at Carranza. The lower Coniacian Scaphites preventricosus, F. (F.) alluaudi, P. (P.) dravidicum and Neocrioceras maximum zones are represented and provide correlation with sections of the US Western Interior and Europe. The original index for the base of the Coniacian, F. (F.) peruana is also present, although few data exist below the Turonian-Coniacian boundary level. The ammonoids were not transported far before deposition, indicated by their preservation and size distribution. A moderate diversification in open-coiled diplomoceratids seemed to have started in the early Coniacian in this region. The El Rosario section provides a detailed ammonoid record and biozonation, and it is one of very few sections in the world where it can be correlated with the standard inoceramid biozonation.
DOI:doi:10.1016/j.cretres.2019.03.014
URL:Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.

Volltext: https://doi.org/10.1016/j.cretres.2019.03.014
 Verlag: http://www.sciencedirect.com/science/article/pii/S0195667118305135
 DOI: https://doi.org/10.1016/j.cretres.2019.03.014
Datenträger:Online-Ressource
Sprache:eng
Sach-SW:Ammonoids
 Biostratigraphy
 Turonian-Coniacian boundary
 Upper Cretaceous
K10plus-PPN:1679320882
Verknüpfungen:→ Zeitschrift

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