The oxygenation of Earth's surface fundamentally altered global biogeochemical cycles and
ultimately paved the way for the rise of metazoans at the end of the Proterozoic. However …

Carbonate rocks of the lower Belt Supergroup (ca. 1.45 Ga) in west-central North America
include the Haig Brook, Tombstone Mountain, Waterton and Altyn formations which crop out …

Eukaryotic life expanded during the Proterozoic eon, 2.5 to 0.542 billion years ago, against a
background of fluctuating ocean chemistry,,. After about 1.8 billion years ago, the global …

Stromatolites are abundant in shallow marine sediments deposited before the evolution of
animals, but in the modern ocean they are restricted to locations where the activity of …

Abstract The well-preserved Meso-Neoproterozoic shallow marine succession of the Atar/El
Mreïti Group, in the Taoudeni Basin, Mauritania, offers a unique opportunity to investigate …

Mixed carbonate–siliciclastic successions have been described in multiple Phanerozoic
sedimentary settings recording the dynamic interplay of tectonics, eustasy, climate, in situ …

Abstract The Ediacaran Bambuí Group corresponds to the main sedimentary succession
exposed in the intracratonic São Fransico basin, E Brazil. Comprising an unconformity …

Purana basins in India are Proterozoic in age, filled with mostly marine, deltaic, and fluvial
sediments, with some alluvial fan deposits in the basin margins. The basin fill is largely …

A new δ 13 C carb curve combined with δ 13 C org values is presented for the upper Shaler
Supergroup (∼ 900 to∼ 720 Ma), Amundsen Basin, northwestern Canada. The dataset fills …

Mudstone-hosted microfossils are a major component of the Proterozoic fossil record,
particularly dominating the record of early eukaryotic life. Early organisms possessed no …