沟鳞鱼

胴甲目沟鳞鱼科的一属.头部及胸部覆以甲片.头部较小，背面覆以坚厚甲片；胸部背、腹面由１０余块骨片连接成匣状.头甲 六边形，眶孔中位.后 松果片小，与侧片之间为中颈片所隔开.后侧片与后背侧片愈合为复合侧片.胸鳍分为两节，中间有关节相连，向后超过躯甲长度.头甲和躯甲背部具“”字形感觉沟.中国湖南、广I东、广西、贵州、云南、宁夏等地中泥盆统均有此类化石.沟鳞鱼复原图&&&&鱼类 Carcass A head of a ditch section is a scale fish. The head and chest covered with a sheet. Head small, the back covered with thick A film; chest, back, ventral from more than 10 pieces to connect into the tray-shaped piece of bone. Head A hexagonal, the median orbital hole. After the pine-chip is small, and the side pieces for the neck between the films are separated. rear sheet film and after the healing of the dorsal side of the composite films. pectoral fin is divided into two sections, the middle of the section connected to more than footer A length of the back. header and footer A back with a "" shaped groove feeling. China Hunan, Guang-I East, Guangxi, Guizhou, Yunnan, Ningxia and other places are kind of Middle Devonian fossils. sulcus scales of fish recovery plan & & & & Fish