Osteological Features of Eurypterygian Pelvic Girdles
作者: Yazdan Keivany
作者单位: 1Isfahan University of Technology
刊名: Iranian Journal of Science and Technology, Transactions A: Science, 2017, Vol.41 (4), pp.989-1002
来源数据库: Springer Journal
DOI: 10.1007/s40995-017-0324-8
关键词: BoneEurypterygiaOsteologyPelvic finPaired fins
英文摘要: The osteology of the pelvic girdle skeleton in representatives of several families of eurypterygian fishes was studied. The pelvic girdle is made up of a pair of ventral plates (basipterygia). Each plate consists of a central part, a median process, a membranous anterior process, an endochondral posterior process, wings, radials, and pelvic spines and rays. Splints are present in some primitive taxa. The central part is an ossification of the original pelvic cartilage that usually anteriorly retains a cartilage tip and posteriorly forms an articulation surface for the fin radials and rays. The membranous wings constitute an internal, an external dorsal, an external ventral, and a ventral wing. Not all the processes and wings are present in all eurypterygian fishes. It is the elaboration...
原始语种摘要: The osteology of the pelvic girdle skeleton in representatives of several families of eurypterygian fishes was studied. The pelvic girdle is made up of a pair of ventral plates (basipterygia). Each plate consists of a central part, a median process, a membranous anterior process, an endochondral posterior process, wings, radials, and pelvic spines and rays. Splints are present in some primitive taxa. The central part is an ossification of the original pelvic cartilage that usually anteriorly retains a cartilage tip and posteriorly forms an articulation surface for the fin radials and rays. The membranous wings constitute an internal, an external dorsal, an external ventral, and a ventral wing. Not all the processes and wings are present in all eurypterygian fishes. It is the elaboration...
全文获取路径: Springer  (合作)
分享到:

×
关键词翻译
关键词翻译
  • ventral 腹的
  • anteriorly 在以前
  • osteology 骨学
  • girdle 薄煤层
  • primitive 原始的
  • wings 舞台侧面的区域
  • skeleton 
  • membranous 薄膜状的
  • dorsal 背面的
  • autogenous 自发的