Shape of the pelvis and posture of the hindlimbs inPlateosaurus |
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Authors: | Andreas Christian Dorothee Koberg Holger Preuschoft |
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Affiliation: | 1. Fakult?t für Medizin, Abteilung für Funktionelle Morphologie (MA 0/44), Ruhr-Universit?t, Universit?tsstr. 150, 44780, Bochum, Germany
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Abstract: | The pelvis ofPlateosaurus is examined from a biomechanical point of view. The shape of the acetabulum in particular is analysed in order to determine the range of possible directions of the forces exchanged between femur and pelvis. These forces must have been more or less confined to a sagittal plane. From a quasi-static analysis under consideration of the major hip muscles ofPlateosaurus, a nearly but not fully extended posture of the hindlimbs can be deduced. The hip joints ofPlateosaurus and probably of some other dinosaurs with a narrow biacetabular width were balanced rather by adducting than by abducting muscles. |
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