Ichnofabric Analysis of Lower Ordovician Orthoceras Limestones, Southern Sweden

9404850 Ekdale PI将描述在地层和古环境背景下的“直角类石灰岩”的遗迹化石和遗迹组构，从而解释非动物群生物群落的性质和结构。这些化石代表了早奥陶世软体生物的唯一记录，早奥陶世是该地区寒武纪氧气危机后内生底栖动物首次扩张的时期。研究还将重建原始的基质条件，以及随着时间的推移，压实、胶结和成岩作用的阶段。

9404850 Ekdale PI will describe trace fossils and ichnofabrics of the "Orthoceras limestones" in their stratigraphic and paleoenvironmental contexts, and thereby interpret the nature and structure of the infaunal organism communities. These fossils represent the only record of soft-bodied organisms during the early Ordovician, a time of first expansion of endobenthos following the Cambrian oxygen crisis in this area. Study will also reconstruct original substrate conditions, and the stages of compaction, cementation, and diagenesis as time progressed.