Here’s everything we know about Kate Winslet and Saoirse Ronan’s new film, Ammonite, including the first-look trailer. When Kate Winslet and Saoirse Ronan sign onto a project, it’s pretty ...

Fossils found in the northern part of Hokkaido are a new type of ammonite, the once-ubiquitous spiral-shelled creatures that went extinct with the dinosaurs 65 million years ago, researchers said.

Based on the fossil record, ammonites came in a wide range of sizes and shapes, from smaller than an inch to as large as nine feet wide. Some ammonites had long, straight shells, while others had ...