![]() ![]() ![]() Nakrem [ History Museum, Box 1172 Blindern, 0318 Oslo, Norway Magne Høyberget [ RennesveMandal, Norway. Øyvind Hammer [ Krzysztof Hryniewicz [ Jørn H. Key words: Onychites, cephalopod hooks, Jurassic, Spitsbergen, Boreal. Considering the relatively small stratigraphic (Kimmeridgian–Volgian) and biogeographic (Boreal) range of this large form, it is likely that it represents a single biological species or genus. Do you have trouble in completely uninstalling Jurassic Realm 1. Comparison with Upper Jurassic material from Greenland, northern Norway and the North Sea demonstrates a remarkably consistent morphology, which we assign to the same form species, Onychites quenstedti. Remove & Uninstall Jurassic Realm 1.01 Completely from Windows. We suggest the use of logarithmic spirals as morphological descriptors for the outer part of cephalopod arm hooks, with implications for systematics and functional morphology. This includes a largely uncompressed hook in a seep carbonate, with preservation of surface sculpture. We report on the discovery of large cephalopod arm hooks (mega−onychites) from the Kimmeridgian and Volgian of Spitsbergen (Agardhfjellet Formation). ![]()
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