Opalized ammonite fossils are some of the most unique and spectacular paleontological specimens. They were formed through a geological process known as opalization, wherein organic material from ...

While several types of ammonite fossils exist, none are probably more spectacular than opalized ones. How opalized ammonites are formed Opal is a hydrated amorphous (non-crystalline) type of silica.

The work could have implications for how aquatic species respond to our ... Discovery of 'Punk' and 'Emo' Fossils Challenges Our Understanding of Ancient Molluscs Jan. 8, 2025 — Researchers have ...

Researchers aboard the E/V Nautilus recently discovered four rare Palau nautiluses, ancient cephalopods also known as "living fossils," in the deep waters near the German Channel. The sighting ...

Jan. 15, 2025 — Scientists have identified fossils of snow leopards. The discovery has allowed them to trace the evolutionary history of the species during the Quaternary period and to propose ...

atomic blast just a mile away. Here’s the story of this living fossil that refuses to age—or die. In the first three seconds after “Little Boy” detonated over Hiroshima, temperatures ...

Remnants of a bizarre “shark-toothed” aquatic predator that lived alongside dinosaurs were probably forged, according to new research. The fossil possesses highly unusual blade-like teeth ...

Plant and animal fossils have been discovered in Hong Kong in the past, including ostracod and ammonite fossils from the early Jurassic and Devonian periods (about 190 million to 400 million years ...

A study led by researchers at the American Museum of Natural History presents the oldest known example in the fossil record of an evolutionary arms race. These 517-million-year-old predator-prey ...

In 2024, researchers from the universities of Oxford and Birmingham excavated a huge expanse of a quarry floor in Oxfordshire filled with hundreds of dinosaur footprints. The remains of the ...