The writer has considered that the stratigraphic sequence of nonmarine Cretaceous--Paleocene in the Tantou Basin of Henan Province should be (from bottom to top) the Qiuba Fm.,Gaoyugou Fm.,Tantou Fm.and Dayu Fm.The stratigraphic sequence of nonmarine Cretaceous--Paleocene in the Ruyang Depression of the same Province should be (from bottom to top) the Jiudian Fm.,Xiahedong Fm.,Haoling Fm.,Xiadonggou Fm.and Shitaijie Fm.Based on the petrostratigraphic,biostratigraphic and sedimentological events,it has been considered now that the K--T boundary in the Tantou Basin is only the parallel unconformity.The geological age of the Haoling Fm.containing dinosaur and other fossils in the Ruyang Depression is considered to be middle--late Early Cretaceous.The contact relation between the Nanzhao Fm.and Mashiping Fm.is not pseudoconformity,but conformable contact,its chronological age may be Early Cretaceous.%笔者认为潭头盆地白垩系和古近系的地层序列(由下而上)应为:秋扒组、高峪沟组、潭头组、大峪组.汝阳凹陷白垩系和古近系的地层序列(由下而上)应为:九店组、下河东组、郝岭组、下东沟组、石台街组.通过岩石地层、生物地层及沉积学等方面的探讨,认为潭头盆地K--T界线目前只能认为是“平行不整合”.汝阳凹陷含恐龙等生物群的郝岭组的地质时代应为早白垩世中期.马市坪盆地的南召组与马市坪组的接触关系不是“假整合”,而是“整合接触”,其地层年代为早白垩世.
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