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Supernovae Blamed For 2 Of Earth’s Mass Extinctions, The Devonian And Ordovician
Two of Earth’s five confirmed mass extinction events could have been caused by nearby supernova explosions stripping the planet’s ozone layer, a new study argues. Although the explanation has been ...
Oldest known phosphatic stromatoporoid sponge discovered in south China
International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 ...
National Geographic news13y
Ordovician Period
Learn more about the time period that took place 488 to 443 million years ago. 3 min read During the Ordovician period, part of the Paleozoic era, a rich variety of marine life flourished in the ...
Mirage News4d
Oldest Phosphatic Sponge Found in South China
International scientists have uncovered the oldest known phosphatic stromatoporoid sponge, dating back approximately 480 ...