古脊椎动物学报2022，Vol.60Issue(1)：29-41,13.DOI:10.19615/j.cnki.2096-9899.210809
甘肃庆阳晚中新世板齿犀类的骰骨材料及其形态学意义
A cuboid bone of a large Late Miocene elasmothere from Qingyang,Gansu,and its morphological significance
摘要
Abstract
A cuboid specimen collected from the Late Miocene stratum at Qingyang,Gansu,China is described here.The size of the Qingyang specimen is comparatively huge,even larger than the average size of Elasmotherium caucasicum collected from Nihewan,Hebei,China.The morphology of the Qingyang specimen is identical to that of other specimens of Elasmotheriini;thus,the Qingyang specimen belongs to a huge elasmothere,most probably Sinotherium.By comparison with extant rhino species,the complex of the main body and the apophysis exhibit functional significance.The angle between the frontal plate of the cuboid and the main axis of the apophysis can suggest the ecological conditions occupied by an elasmothere.From analysis of the morphology of the cuboid,Sinotherium and the more derived elasmotheres probably lived in forested or wooded environments,differing from the previous hypothesis of their paleoenvironment.关键词
甘肃庆阳/晚中新世/板齿犀类/骰骨/古生态Key words
Qingyang,Gansu/Late Miocene/elasmotheres/cuboid bone/paleoceology分类
生物科学引用本文复制引用
张晓晓,孙丹辉..甘肃庆阳晚中新世板齿犀类的骰骨材料及其形态学意义[J].古脊椎动物学报,2022,60(1):29-41,13.基金项目
中国科学院战略性先导科技专项(编号:XDB26030302,XDA20070203)资助.We thank Deng Tao and Sun Boyang (IVPP) for their helpful suggestions and for improving the manuscript.Judy Galkin and Eleanor Hoeger (AMNH)respectively provided accesses to observations on the specimens of both fossil and extant rhinos.Oliver Sandrock (HLMD) provided accesses to observations on the H(o)wenegg collection.Shi Qinqin (IVPP) provided very important literature for references.We appreciate all of their contributions.This work was supported by the Chinese Academy of Sciences (Grant Nos.XDB26030302,XDA20070203). （编号:XDB26030302,XDA20070203）
