One group of coral-like sea organisms in particular, called bryozoan, shows this kind of pattern. The well-preserved fossil record of bryozoans shows that one species first appeared about 140 ...

This is a fossilized coral — one of dozens scattered across the Indian Ocean archipelago of the Seychelles. It is a piece of history, hidden in plain sight. It tells of a time 125,000 years ago ...

And importantly, researchers discovered that coral diversity ... stable over long geological timescales, with these patterns also found in fossil records. The study's results show that although ...

which can be identified by its trademark hexagonal pattern. Petoskey stone corals existed about 390 million years ago, according to Backyard Fossils. Other corals and coral-like animals that now ...