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Neoselachians from the Upper Campanian and Lower Maastrichtian (Upper Cretaceous) of the Southern Pyrenees, northern Spain

Kriwet, Jürgen and Soler Gijón, Rodrigo and López Martínez, Nieves (2007) Neoselachians from the Upper Campanian and Lower Maastrichtian (Upper Cretaceous) of the Southern Pyrenees, northern Spain. Palaeontology, 50 (5). pp. 1051-1071. ISSN 0031-0239

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Abstract

Bulk sampling of upper Campanian to lower–
middle Maastrichtian coastal and lagoonal deposits in five
sections of the Tremp Formation in the south-central Pyrenees
yielded numerous neoselachian teeth. The fauna comprises
nine taxa of which three species and one genus are new:
Hemiscyllium sp., Lamniformes indet., Paratrygonorrhina
amblysoda gen. et sp. nov., Coupatezia trempina sp. nov.,
Coupatezia sp., Coupatezia? sp., Rhombodus ibericus sp. nov.
and Igdabatis indicus. The neoselachian fauna is dominated
by small nectobenthic rays. This composition resembles
assemblages known from the marine Upper Cretaceous, but
differs from nearby localities of the Basque-Cantabrian region
and continental selachian associations of the French Pyrenees.
The results indicate that Rhombodus might not be a reliable
biostratigraphic marker for the Maastrichtian. The faunal
composition suggests a shallow trans-Tethyan connection
between Eurasia and India at the end of the Cretaceous Period.

Item Type:Article
Additional Information: The definitive version is available at www.blackwell-synergy.com"
Uncontrolled Keywords:Biostratigraphy, Late Cretaceous, Neoselachii, Palaeoecology, Palaeogeography, Pyrenees, Spain.
Subjects:Sciences > Geology > Paleontology
Sciences > Geology > Stratigraphic geology
ID Code:10534
Deposited On:26 Apr 2010 10:50
Last Modified:06 Feb 2014 08:45

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