排序方式: 共有45条查询结果,搜索用时 0 毫秒
1.
2.
3.
The cladistic relationships of Archaeopteryx , the earliest known bird, are re-examined and previous hypotheses of relationships evaluated. The morphology of Archaeopteryx is redescribed. New interpretations of the fossils are presented, particularly in regard to the morphology of the pectoral girdle, manus, pelvic girdle, tarsus and pes. These new interpretations challenge some of the phylogenetic hypotheses recently presented and a new version of thecodontian relationships is suggested. 相似文献
4.
HECHT EL 《Annals of the New York Academy of Sciences》1956,63(6):1399-1408
5.
6.
7.
8.
9.
10.