作者: Francisco Ruiz , María Luz González-Regalado , Manuel Abad , Jorge Civis , José Ángel González Delgado
DOI: 10.1016/J.GEOBIOS.2007.07.004
关键词: Biozone 、 Bathyal zone 、 Abyssal zone 、 Neogene 、 Cenozoic 、 Phanerozoic 、 Biostratigraphy 、 Ostracod 、 Geology 、 Paleontology
摘要: This paper analyzes the lithostratigraphic features and ostracod associations of Pliocene deposits located in western sector Guadalquivir basin (SW Spain). A regressive cycle is defined by vertical distribution five main facies (FA-1 to FA-5), which were deposited upper bathyal fluvial palaeoenvironments. The broad palaeontological record utilized draw a general outline food chain each palaeoenvironment. comparison with southeastern Spain, southwestern France Portugal permits define common biozonation for Europe during this period. Four marine biozones are distinguished: (a): Pontocythere elongata biozone (infralittoral); (b): Costa edwardsii (shallow circalittoral); (c): Bosquetina carinella (deep (d): Henryhowella asperrima (upper bathyal). Freshwater, brackish lower bathyal/abyssal species very scarce area