Blar i Bergen Open Research Archive på forfatter "Pollerspöck, Jürgen"
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First in situ documentation of a fossil tooth of the megatooth shark Otodus (Megaselachus) megalodon from the deep sea in the Pacific Ocean
Pollerspöck, Jürgen; Cares, Danielle; Ebert, David A.; Kelley, Katherine A.; Pockalny, Robert; Robinson, Rebecca S.; Wagner, Daniel; Straube, Nicolas (Journal article; Peer reviewed, 2023)In this short communication, we describe the first reported case of an in-situ observation and subsequent sampling of a fossil Otodus megalodon tooth from a deep-sea locality in the Pacific Ocean (14.11332°N, 167.39357°W; ... -
Intraspecific dental variations in the deep-sea shark Etmopterus spinax and their significance in the fossil record
Straube, Nicolas; Pollerspöck, Jürgen (Journal article; Peer reviewed, 2020)An important character on several taxonomic levels for shark identification is the tooth morphology. Sharks show a variety of highly specialized dentitions reflecting adaptations to their feeding habits. Intraspecific ... -
Molecular analyses of confiscated shark fins reveal shortcomings of CITES implementations in Germany
Villate-Moreno, Melany; Pollerspöck, Jürgen; Kremer-Obrock, Friederike; Straube, Nicolas (Journal article; Peer reviewed, 2021)A three-ton shipment of dry shark fins was examined by German customs in 2017 leading to the confiscation of 405 kg of potential CITES species. We analyzed a subsample of this material (115 specimens) using DNA sequence-based ... -
New records of fossil deep-sea shark teeth from the Lillebælt Clay (Early–Middle Eocene) of Denmark
Pollerspöck, Jürgen; Nielsen, Kent Albin; Feichtinger, Iris; Straube, Nicolas (Journal article; Peer reviewed, 2023)This study describes for the first time a number of distinct fossil teeth documenting several deep-sea shark species from the Eocene, which were previously not recorded from the North Sea Basin, including Apristurus sp., ... -
Trophic position of Otodus megalodon and great white sharks through time revealed by zinc isotopes
McCormack, Jeremy; Griffiths, Michael L.; Kim, Sora L.; Shimada, Kenshu; Karnes, Molly; Maisch, Harry; Pederzani, Sarah; Bourgon, Nicolas; Jaouen, Klervia; Becker, Martin A.; Jöns, Niels; Sisma-Ventura, Guy; Straube, Nicolas; Pollerspöck, Jürgen; Hublin, Jean-Jacques; Eagle, Robert A.; Tütken, Thomas (Journal article; Peer reviewed, 2022)Diet is a crucial trait of an animal’s lifestyle and ecology. The trophic level of an organism indicates its functional position within an ecosystem and holds significance for its ecology and evolution. Here, we demonstrate ...