【摘要】 四川龙门山澄水下泥盆统平驿铺组的沉积构造、岩石类型、遗体化石及遗迹化石组合的证据习惯地解释为前滨—近滨的沉积环境。其遗迹化石有平行双栖管迹、盔形双栖管迹、多向双栖管迹、海生迹、洛克迹、斧足迹、平管迹和丛藻迹等。本文仅对垂直型U形跳状构造潜穴的形态特征作了较详细的研究。包括的遗迹种有平行双栖管迹、盔形双栖管迹、多向双栖管迹等。更多还原

【Abstract】 The evidence from sedimentary structures, rock types, remains fossils and trace fossils association in the Lower Devonian pinyipu formation, Chengshui Longmen Mountain Sichuan. was used to be explained as two depositional environments: nearshore-foreshore. The common trace fos- sils include Diplocraterion parallelum, D. helmersent, D. polyupsilon, Thallassinoides, Lockeia, Pelecy podichnus, Planolites and Chondrites. The morphological features of vertical U-shaped spreitenburrows, including the ichnospecies Diplocraterion parallelum, D. helmersent and D. polyapsilon, are studied in detail in this work. Diplocraterion was formed in the littoral environments, most commonly in the foreshore zone.更多还原