山西汾河下游早更新世鸡形目(Galliformes)一新属  

A new genus of early Pleistocene Galliformes in the lower reaches of the Fenhe River, Shanxi, China

作　　者：王烁[1] 赵思宁[1] 胡晓珊[1] 孙清珉 

机构地区：[1]天津师范大学化学与生命科学学院,天津300074 [2]运城师范学院,山西运城044000

出　　处：《地质通报》2006年第7期858-861,共4页Geological Bulletin of China

基　　金：天津师范大学科研立项基金(1CHS02B)资助。

摘　　要：描述了汾河下游早更新世三门组的一件鸡形目鸟类化石。其特征是,跗跖骨近端正面血管孔凹陷非常深,内韧带脊发育,第Ⅱ滑车比雉科其他属向下和向内侧扩展,盾锥形滑车翼内斜,第Ⅳ滑车翼较雉科现生属长,翼向上不延伸,第Ⅰ趾骨槽平滑极不明显,胫跗骨胫内脊向下分出2条,外侧者与胫外脊延长线最终合拢在一起。根据以上特征建立一新属新种——汾阴山西雉Shanxiornisfenyinisgen.etsp.nov.。A Galliformes bird fossil was collected from the early Pleistocene Sanmen Formation in the lower reaches of the Fenhe River, Shanxi Province. It has the following diagnostic features： the cotylae of the inner and outer proximal forarnens of the tarsometatarsus are deep; the attachments of the internal ligament are well developed; trochlea metatarsi Ⅱ extends father downward and inward than other genera of Galliformes; the wing of trochlea Ⅱ is exilis; the wing of trochlea Ⅳ is longer than the extant genus and there is no attachment in the lower part; in the lower part of the inner cenmial crest, there are two lines along the tibiotarsus and the outer one is connected with the one which extends from the outer cenmial crest. According to the above-mentioned features, a new GaUiformes bird Shanxiornis fenyinis gen. et sp. nov. is erected.

关 键 词：早更新世 鸡形目化石 汾河下游 山西 

分 类 号：Q915.865[天文地球—古生物学与地层学]