Browsing FAS Scholarly Articles by Keyword "Earth history"
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Molybdenum evidence for expansive sulfidic water masses in ~750Ma oceans
(Elsevier BV, 2011)The Ediacaran appearance of large animals, including motile bilaterians, is commonly hypothesized to reflect a physiologically enabling increase in atmospheric and oceanic oxygen abundances (pO2). To date, direct evidence ... -
Protistan Skeletons: A Geologic History of Evolution and Constraint
(Springer Science + Business Media, 2015)The tests and scales formed by protists may be the epitome of lightweight bioconstructions in nature. Skeletal biomineralization is widespread among eukaryotes, but both predominant mineralogy and stratigraphic history ...