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| BIOMECHANICAL PROPERTIES OF DINOSAUR EGGSHELLS (Ⅰ)─THE STRESS ANALYSIS OF THE DINOSAUR EGGSHELLS UNDER EXTERNAL PRESSURE | |
| 作者姓名： | Zhao Zikui(Institute of Vertebrate Paleontology and Paleoanthropology Acadcmia Sinica)Ma Hezhong Yang Yongqi(Beijing University of Aeronautics and Astronautics) |
| 作者单位： | Zhao Zikui(Institute of Vertebrate Paleontology and Paleoanthropology，Acadcmia Sinica)Ma Hezhong Yang Yongqi(Beijing University of Aeronautics and Astronautics) |
| 摘 要： | Inrecentyears,severalstudieshaveindicatedthattheconductanceofwatervaporandrespiratorygases,estimatedfrommeasurementsofdinosaureggshellandporegeometry,canprovideevidencefortheenvironmentalconditionssurroundingembryosduringincubation(Seymour,1979;Williamsetal.,1984;Mou,1992).Inparticular,ithasbeensuggestedfromsomepapersaboutdinosaureggshellsthatthelastextinctionofdinosaurswou1dberelatedtotheirreproduction(Erben,1970;Erbenetal.,1979;Zhao,1978,1990,1994;Zhao,Yeetal.,1991;Zhao,Wangetal.,1993).T… |
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