Carpal bones of Nacholapithecus kerioi, a Middle Miocene Hominoid From Northern Kenya
Carpal bones of Nacholapithecus kerioi, a Middle Miocene Hominoid From Northern Kenya
复制标题
Nacholapithecus kerioi 的腕骨，来自肯尼亚北部的中新世人科动物
DOI：
10.1002/ajpa.22984
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发表时间：
2016
影响因子：
2.8
通讯作者：
H. Ishida
中科院分区：
文献类型：
--
作者：
N. Ogihara;S. Almécija;M. Nakatsukasa;Y. Nakano;Y. Kikuchi;Y. Kunimatsu;H. Makishima;D. Shimizu;T. Takano;H. Tsujikawa;M. Kagaya;H. Ishida
ObjecessesThe腕骨的中中新世人科Nacholapithecuskerioiare描述的基础上的新materials.Materials和MethodsThe材料包括梯形，三个头状，两个钩骨，centrale，一个月状，三角形，豌豆形，收集在2001年和2002年的领域季节从Nachola，肯尼亚。我们还描述了一个豌豆形最近分配的模式标本N。结果南猿腕骨的尺骨茎突与三角骨和豌豆骨都有关节连接，钩骨上的三角骨小面在背侧位相对近远侧。TheNacholapithecuscapitate具有温和的远掌钩状过程和分离的桡关节面的梯形和第二掌骨由于腕掌韧带附件是缺席的在theProconsulcapitate.DiscussionThe腕骨解剖的Nacholapithecus是类似的早中新世原始人Proconsul。然而，那古拉猿腕关节的解剖结构似乎表现出稍微强调的稳定性。美国物理人类学杂志160：469-482，2016年。© 2016 Wiley Periodicals，Inc.
ObjectivesThe carpal bones of the middle Miocene hominoidNacholapithecus kerioiare described based on new materials.Materials and MethodsThe materials comprise a trapezoid, three capitates, two hamates, a centrale, a lunate, a triquetrum, and a pisiform, collected during the 2001 and 2002 field seasons from Nachola, Kenya. We also describe a pisiform recently assigned to the type specimen ofN. kerioi, KNM‐BG 35250.ResultsIn theNacholapithecuswrist, the ulnar styloid process articulates with both the triquetrum and pisiform, and the triquetrum facet on the hamate is relatively proximodistally oriented in dorsal view. TheNacholapithecuscapitate possesses a moderate distopalmar hook‐like process and separated radial articular facets for the trapezoid and the second metacarpal due to the carpometacarpal ligament attachment that is absent in theProconsulcapitate.DiscussionThe carpal anatomy ofNacholapithecusis similar to that of the early Miocene hominoidProconsul. However,Nacholapithecuswrist anatomy appears to exhibit slightly more emphasized stability. Am J Phys Anthropol 160:469–482, 2016. © 2016 Wiley Periodicals, Inc.