protoconodonts相关论文
On the evolution and histology of some Cambrian protoconodonts, paraconodonts and primitive euconodo
Previous reports on the morphological evolution of protoconodonts and paraconodonts are reviewed. The evolutionary trend......
Early Cambrian protoconodonts and conodont-like fossils from China:Taxonomic revisions and stratigra
Protoconodonts and conodont-like microfossils are characteristic components in the early Cambrian skeletal faunas. Since......
On the evolution and histology of some Cambrian protoconodonts, paraconodonts and primitive euconodo
Previous reports on the morphological evolution of protoconodonts and paraconodonts are reviewed. The evolutionary trend......
原牙形类和牙形状化石是早寒武世微小骨骼化石中非常特征的一个类群。自二十世纪70年代以来，这些齿状的微型磷质骨片化石在中国下寒......
本文主要介绍对采自湘西、辽东和鲁西的寒武纪牙形石进行组织学和比较组织学研究成果中尚未发表的内容。以前认为是原牙形石的属Hu......
