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Histological bone structure of Lower Cretaceous dinosaurs from southwest Istria (Croatia) |
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| Authors: | Z Kozari? M Šparica Z Bajraktarevi? |
| Institution: | aDepartment of Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, University of Zagreb, Heinzelova 55, 41 000 Zagreb, Croatia;bInstitute of Geology, 41 000 Zagreb, Sachsova 2, Croatia;cDepartment of Geology and Palaeontology, Faculty of Science, University of Zagreb, 41 000 Zagreb, Zvonimirova 8, Croatia |
| Abstract: | Recently discovered dinosaur bones in submerged near-shore deposits of southwest Istria include one vertebra, one femur, and two rib fragments. They all show well-developed vascularization. The large amounts of primary bone tissue in the vertebral and femoral compacta as well as in one rib fragment suggest that they belong to sub-adult animals which were growing rapidly. The structure of a second rib fragment differs in that it consists of secondary bone. The absence of lines of arrested growth is evident in all investigated bones. This suggests a sustained manner of bone deposition. |
| Keywords: | Upper Hauterivian ?Lower Barremian dinosaur bones palaeofauna palaeohistology Croatia |
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