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GEOREF RECORD

Early Campanian (Late Cretaceous) squatiniform and synechodontiform selachians from the Asen locality, Kristianstad Basin, Sweden

Mikael Siversson, T. D. Cook, P. Cederstrom and H. E. Ryan
Early Campanian (Late Cretaceous) squatiniform and synechodontiform selachians from the Asen locality, Kristianstad Basin, Sweden (in Mesozoic biotas of Scandinavia and its Arctic territories, Benjamin P. Kear (editor), Johan Lindgren (editor), Jorn H. Hurum (editor), Jesper Milan (editor) and Vivi Vajda (editor))
Special Publication - Geological Society of London (2016) 434: 251-275

Abstract

The latest early Campanian archipelago deposits of the Kristianstad Basin, southern Sweden, yield one of the most diverse Cretaceous chondrichthyan faunas collected from a narrow stratigraphical interval. Building on previous descriptions of various selachians, squatiniform and synechodontiform sharks are added to the faunal list. Squatinidae is represented by Squatina (Squatina) lundegreni sp. nov. and Squatina (Squatina) fortemordeo sp. nov. The poorly preserved type specimens of the nominal Squatina hassei from the Maastrichtian of The Netherlands were recently regarded conspecific with better preserved Santonian-Maastrichtian teeth of Squatina (Cretascyllium) from the Anglo-Paris Basin. This appears to have been based largely on the assumption that the nominal S hassei was the only Squatina present in NW Europe during the Santonian-Maastrichtian. The Swedish material indicates a greater diversity of squatinoids, and the nominal S hassei is here regarded as a nomen dubium of uncertain subgeneric affinity. Two types of synechodontid teeth with a tall central cusp co-occur in the Campanian of the Kristianstad Basin. Based on articulated jaws of the markedly dignathic S dubrisiensis from the Cenomanian of England, the two morphs are regarded as upper and lower anterior teeth of the single species S filipi sp. nov.


ISSN: 0305-8719
EISSN: 2041-4927
Coden: GSLSBW
Serial Title: Special Publication - Geological Society of London
Serial Volume: 434
Title: Early Campanian (Late Cretaceous) squatiniform and synechodontiform selachians from the Asen locality, Kristianstad Basin, Sweden
Title: Mesozoic biotas of Scandinavia and its Arctic territories
Author(s): Siversson, MikaelCook, T. D.Cederstrom, P.Ryan, H. E.
Author(s): Kear, Benjamin P.editor
Author(s): Lindgren, Johaneditor
Author(s): Hurum, Jorn H.editor
Author(s): Milan, Jespereditor
Author(s): Vajda, Vivieditor
Affiliation: Western Australian Museum, Department of Earth and Planetary Sciences, Welshpool, West. Aust., Australia
Affiliation: Uppsala University, Uppsala, Sweden
Pages: 251-275
Published: 2016
Text Language: English
Publisher: Geological Society of London, London, United Kingdom
References: 95
Accession Number: 2016-087128
Categories: Vertebrate paleontology
Document Type: Serial
Bibliographic Level: Analytic
Illustration Description: illus. incl. strat. col., geol. sketch map
N56°08'56" - N56°08'56", E14°29'56" - E14°29'56"
Secondary Affiliation: Pennsylvania State University at Erie, USA, United States
Country of Publication: United Kingdom
Secondary Affiliation: GeoRef, Copyright 2017, American Geosciences Institute. Reference includes data from The Geological Society, London, London, United Kingdom
Update Code: 201643
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