In eukaryotic tree, grey dash lines represent ... Scale bar in the green algal fossil equals 500 μm; the rest are 50 μm News organizations may use or redistribute this image, with proper ...

The evidence for the oldest eukaryotes doesn't come from traditional fossils, which date back only about 1.2 billion years. It comes, once again, from molecular fossils. Among the many things that ...

In addition, the fossils themselves can be useful, allowing scientists to determine when certain external features first appeared, adds Porter, who is currently interrogating such specimens to order ...

The oldest multicellular algae fossil dates to 1,200 mya. At this time, biological diversity increases greatly, with algae, fungi, animals, and plants diverging from their common eukaryote ancestors.

Recent research suggests they may represent an entirely extinct and previously unknown lineage of Eukaryotes ... well-preserved fossil remains dating back to the Early Devonian period.

“Previously, the oldest widely accepted ... though sparse fossil record, which is that green algae likely existed about a billion years ago.” P. antiquus was a marine, multicellular eukaryote with an ...

Scientists have debated where Prototaxites belong in the tree of life for over a century, but now a new study suggests it ...

Owen Lovejoy (examining fossil bones with Scott Simpson, left, at the National Museum of Ethiopia). David L. Brill Researchers long assumed early human ancestors were chimpanzee-like. But Ardi's ...

Piecing together the story of Europe’s earliest settlers is a challenge, largely because relevant human fossils are scarce. On March 12, researchers announced the discovery of a new fossil from the ...