系统研究了湖北黄石新下陆下三叠统嘉陵江组碳酸盐岩地层中6个属的遗迹化石:Helminthopsis,Palaeophycus,Phycodes,Planolites,Rhizocorallium,Scalarituba,确认上述遗迹化石属于Cruziana遗迹相,依据风暴沉积及遗迹化石的组合推断嘉陵江组沉积序列是正常潮坪、浅海陆棚、浅水蒸发岩的沉积旋回。黄石地区的遗迹化石与美国西部弗吉尼亚早三叠世早期到晚期的演化特征以及前寒武纪-寒武纪之交、晚泥盆世弗拉期-法门期之交的遗迹化石所显示的演化特征颇为相近,这一耦合现象可能与生物-环境的系统演化有关。
Six ichnogenera and nine ichnospecies are reported and described from the Early Triassic Jialingjiang Formation in Huangshi of Hubei, central China. These race fossils, including Helminthopsis abeli , Palaeophycus tubularis , Palaeophycus cf. heberti, Phycodes palrnatus , Planolites beverleyensis , Planolites ichnosp. 1, Planolites ichnosp. 2, Rhizocoralliurn cf. jenense,Scalarituba cf. rnissouriensis, are designated to be Cruziana ichnofacies. According to the trace fossils and physical sedimentary characteristics of the first and third members of the Jialingjiang Formation, it can be inferred that sedimentary environments underwent changes from the tidal flat to neritic shelf to evaporating tidal flat. The present study demonstrates that similarities in both features and evolution of trace fosslis among the Sinan-Cambrian, Late Devonian Frasnian-Famennian and Early Triassic, may be related to phylogenetic evolution between biology and environment .