Papers in Palaeontology, Год журнала: 2025, Номер 11(2)
Опубликована: Март 1, 2025
Abstract The Ediacaran–Cambrian transition was a time of profound geobiological revolution and sedimentary change in Earth's history, including arguably the most dramatic evolutionary radiation remarkable biotic replacement. complex feedback between diversification metazoans their ecological interactions, especially after extinction latest Ediacaran biota, is still debated. Here, we systematically studied trace fossil content succession from Meishucun section South China. A total 20 ichnogenera comprising 31 ichnospecies have been identified succession. occurrence Treptichnus pedum Lower Phosphate Zhongyicun Member reinforces importance this ichnotaxon as an indicator boundary. Our critical review record key shows that increases ichnodiversity, ichnodisparity, degree bioturbation, bioturbation depth were accompanied by modes life ecosystem engineering throughout early Cambrian. stepped increased ichnodiversity ichnodisparity transition, simple morphologies to branching Fortunian, finally horizontal looping trails suspension feeding burrows Cambrian Stage 2, paralleled shift information agronomic revolution. hike intensity occurred during 2 may resulted increase bioirrigation levels conducive further deepening redox discontinuity surface.
Язык: Английский