宕昌甘肃角石(新属,新种)Kansucetas dangchangense(gen.et sp.nov.)为旋壳鹦鹉螺类化石。本文对该化石进行了较为详细的描述,并讨论了它的分类位置及分布时代。该类化石在我国泥盆纪被发现尚属首次,这对我国泥盆纪地层与世界其它地区对比提供了新资料。 Dangchang Gansu corner stone (new genus, new species) Kansucetas dangchangense (gen.et sp.nov.) Serpentine shell nautilus fossils. This paper describes the fossil in more detail and discusses its classification location and distribution age. This type of fossil was discovered for the first time in China’s Devonian, which provided new information on the comparison between the Devonian strata in China and the rest of the world.