Tag - microscopic

Microscopic Fossilized Embryos Unveil Fascinating Insights into Life 500 Million Years Ago

One of the specimens of Saccus xixiangensis, no more than 1 millimeter in diameter. (Liu et al., Palaeogeogr. Palaeoclimatol. Palaeoecol., 2025)Tiny mineralized spheres are offering fresh insights into the history of life on Earth. These millimeter-sized fossils, over 535 million years old, are the fossilized embryos of early Cambrian animals.Belonging to the Ecdysozoa group—which includes insects,...