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Theropod dinosaur teeth from the lowermost Cretaceous Rabekke Formation on Bornholm, Denmark |
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| Authors: | Johan Lindgren,Philip J. Currie,Mikael Siverson,Sofie Lindströ m |
| Affiliation: | a Department of Geology, GeoBiosphere Science Centre, Lund University, Sölvegatan 12, 22362 Lund, Sweden b Department of Biological Sciences, University of Alberta, CW 405 Biological Science Building, Edmonton, Alberta T6G 2E9, Canada c Department of Biology, Karlstad University, 65188 Karlstad, Sweden d Department of Earth and Planetary Sciences, Western Australian Museum, Francis Street, 6000 Perth, Western Australia, Australia e School of Earth and Geographical Sciences, University of Western Australia, 35, Stirling Highway, 6009 Crawley, Western Australia, Australia |
| Abstract: | The dinosaur fauna of the palynologically dated lower Berriasian Skyttegård Member of the Rabekke Formation on the Baltic island of Bornholm, Denmark, is represented by isolated tooth crowns. The assemblage is restricted to small maniraptoran theropods, assigned to the Dromaeosauridae incertae sedis and Maniraptora incertae sedis. The dromaeosaurid teeth are characterized by their labiolingually compressed and distally curved crowns that are each equipped with a lingually flexed mesial carina and a distinctly denticulated distal cutting edge. A morphologically aberrant tooth crown (referred to as Maniraptora incertae sedis) has triangular denticles of uneven width, a feature occasionally found in Upper Cretaceous hesperornithiform toothed diving birds, but also in premaxillary teeth of the velociraptorine Nuthetes from the Lower Cretaceous of England. |
| Keywords: | Bornholm Cretaceous Denmark Dromaeosauridae Teeth Theropoda |
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