Proterozoic

Just out | Proterozoic microbial mats and their constraints on environments of silicification @ Geobiology

Just out @ Geobiology Proterozoic microbial mats and their constraints on environments of silicification Author(s) R. Manning-Berg, L. C. Kah Abstract: The occurrence of microfossiliferous, early diagenetic chert in Proterozoic successions is broadly restricted to peritidal marine environments. Such coastal environments are amongst the most environmentally variable of marine environments, experiencing both enhanced evaporation and potential influx of terrestrial freshwaters. To better understand potential conditions under which silicification occurs, we

Just out | Micropaleontology of the lower Mesoproterozoic Roper Group, Australia, and implications for early eukaryotic evolution @ Journal of Paleontology

Just out @ Journal of Paleontology Title:  Micropaleontology of the lower Mesoproterozoic Roper Group, Australia, and implications for early eukaryotic evolution Author(s) Emmanuelle J. Javaux, Andrew H. Knoll Abstract: Well-preserved microfossils occur in abundance through more than 1000 m of lower Mesoproterozoic siliciclastic rocks composing the Roper Group, Northern Territory, Australia. The Roper assemblage includes 34 taxa, five interpreted unambiguously as eukaryotes, nine as possible eukaryotes (including Blastanosphaira kokkoda new