BELLEVUE, Wash. — Not all fossils are remnants from ferocious dinos. Some of them are teeny-tiny blobs.
Scientists recently discovered some of these blobs in the form of 2.5-billion-year-old fossils of primitive bacteria. These ancient microbes are likely cyanobacteria, but they are unusually large and have weird shapes protruding from them, said Andrew Czaja, an associate professor at the University of Cincinnati, who presented his findings on Wednesday (June 26) at the Astrobiology Science Conference.