recent paleontological and neontological studies on feathers and feather-like integumentary structures have improved greatly our understanding of the origin and early evolution of feathers.
近年来关于羽毛和羽状皮肤衍生物的研究极大促进了我们对羽毛起源与早期演化的理解。
its integumentary filaments—long, thin structures protruding from its scaly skin—convinced most paleontologists that the animal was the first feathered dinosaur ever unearthed.
the first part of this study researched the influence of bacterium inducement on the ultrastructure integumentary system in eisenia fetida.
论文主要分为以下几个部分:第一部分,分析了角质层和表皮在蚯蚓抗菌生态免疫系统中的作用。
result: the texture of integumentary cells, the shape and size of hair socket and bristle were important characters for species identification.
结果:可根据体壁细胞的纹理、毛窝的形态、大小及刚毛的特征进行区别。
which is why dr zheng was stunned to find on tianyulong confuciusi what are conservatively described in her paper as 「long, singular and unbranched filamentous integumentary structures」.