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It is currently classified as a member of order Siphonocladales, class Ulvophyceae. [1] In 2023, a study calculated the molecular age of green algae as calibrated by this fossil. The study estimated the origin of Chlorophyta within the Mesoproterozoic era, at around 2.04–1.23 billion years ago. [55]
[10]: 1 About 70% of the Earth's land-based nickel resources are contained in laterites; they currently account for about 40% of the world nickel production. [10]: 1 In 1950 laterite-source nickel was less than 10% of total production, in 2003 it accounted for 42%, and by 2012 the share of laterite-source nickel was expected to be 51%.