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Many marine plankton species went out during the mass die - off of the dinosaurs 65 million years ago . The global rain of tiny dead carapace litter marine sediment from the period .
But at least one plankton - consume animal appears to contradict this grounds of a mass plankton extinction , a new report reports . Fossil records of coral - like marine creatures call bryozoan , which survived thekiller asteroid encroachment , show little modification across the quenching boundary . The bottom - dwelling animals live in colonies , either erect on the seafloor or encrusted on other organisms such as seaweed . Bryozoan ’s feather - same filters catch passing plankton and other food particles as they tramp past .
An artist’s impression of a giant space rock slamming into Earth 65 million years ago near what is now Mexico’s Yucatan Peninsula. A consortium of scientists now says this was indeed what caused the end of the Age of Dinosaurs.
If there was a phytoplankton crash , the fossil colonies , from the southeast United States and Denmark , should have responded to the lack of food . Either there was no phytoplankton crash at the end of the Cretaceous , or the time graduated table of the extinction is too small to be resolve in the fossil record , the study authors report .
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An artist’s impression of a giant space rock slamming into Earth 65 million years ago near what is now Mexico’s Yucatan Peninsula. A consortium of scientists now says this was indeed what caused the end of the Age of Dinosaurs.
