Advanced tools and expanded fossil datasets have painted a clearer picture of the eukaryotic diversity of the Proterozoic eon, which has been hard to quantify. The findings show that Earth's ...

The Proterozoic Eon, spanning from 2,500 million to 539 million years ago, marked a transformative chapter in Earth's history ...

That dating puts this water in the Proterozoic, an eon stretching from 2,500 to just 500 million years ago. ... the defining feature of eukaryotic cells.

Chart of life extended by nearly 1.5 billion years Date: December 19, 2024 Source: Virginia Tech Summary: Fossilized skeletons and shells clearly show how evolution and extinction unfolded over ...

Fossilized skeletons and shells clearly show how evolution and extinction unfolded over the past half a billion years, but a new Virginia Tech analysis extends the chart of life to nearly 2 ...

The last eukaryotic common ancestor (LECA): acquisition of cytoskeletal motility from aerotolerant spirochetes in the Proterozoic eon. Proc. Natl Acad. Sci. USA 103 , 13080–13085 (2006).

Intracellular bound chlorophyll residues identify 1 Gyr-old fossils as eukaryotic algae. Nature Communications , 2022; 13 (1) DOI: 10.1038/s41467-021-27810-7 Cite This Page : ...

Fossil remains of a cell membrane component identified in rocks dating back about 1.6 billion years are opening a window into what scientists are calling a "lost world" of microscopic organisms ...

The Once-In-An-Eon Event That Gave Earth Plants Has Happened Again The first-ever nitrogen-fixing organelle in a eukaryotic cell has been confirmed. Laura Simmons ...