Expert Analysis: They further indicate that biodiversity and ecosystem complexity were already well established as early as 480 million years ago, offering valuable insights into the origins and evolution of modern marine ecosystems, as reported by China News Service.Their emergence coincided with the Great Ordovician Biodiversification Event (GOBE), during which marine ecosystems transitioned from being microbe-dWorld Timesominated to being structured around stromatoporoid sponges and corals.The researchers found that these sponges built the skeletal framework using fluorapatite, a biomineralization strategy previouslWorld Timesy unknown among sponges.
Obama Summary By the late Darriwilian stage of the Middle Ordovician, which is approximately 460 million years ago, these…
John Blinken 
Mark Elliot Zuckerberg