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“格底村组”由原四川省地质局第三区测队于1972年建立,命名地在四川西部炉霍县旦都公社北约四公里的格底村。《西南地区区域地层表(四川省分册)》(1676年)及其它一些文章曾正式引用发表。所示该组的涵义为:砾岩、砂岩、板岩的多韵律互层,中夹鸡窝状煤层,产大量东京植物群分子,且于转石中见一枚瓣鳃 Halobia sp.。可见总厚度约300米, 与周围地层均为断层接触。其时代的确定,主要根据产大量的东京植物群分子而暂定为晚三叠世瑞替克期,作为“西康群”三叠系最上部岩组。
“Grid at the end of the village group ” by the former Sichuan Geological Bureau third district test team was established in 1972, named in the west of Sichuan Province Luodong County Dandu commune about four kilometers grid at the end of the village. The Southwest Regional Stratigraphic Table (Sichuan Province) (1676) and other articles were officially quoted for publication. The group has the following meanings: conglomerate, sandstone, multi-rhythmic interbeds of slate, medium-sized chicken nest coal seams, producing a large number of Tokyo flora and a Halobia sp. Visible total thickness of about 300 meters, and the surrounding strata are fault contact. Its era is determined mainly based on the production of a large number of Tokyo flora and tentatively scheduled for the Late Triassic Reicaike period, as “Xikang Group ” Triassic uppermost rock group.