Some Sanskrit poetical works identify them as fossils created by a kind of worm. True saligrams are found only in the valley of the Gandaki River in Nepal and northern India. Typically spherical, they ...

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 ...

Ammonites were shelled cephalopods that died out about 66 million years ago. Fossils of them are found all around the world, sometimes in very large concentrations. The often tightly wound shells of ...

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 ...

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.

Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms ...

Ammonite fossils, an example is shown here, are sea creatures that became extinct about 65 million years ago. Fossil remains have been found in rocks of all ages. Fossils of the simplest organisms ...

A "stunning" and well-preserved ammonite fossil — believed to be between 100 to 105 million-years-old — has been discovered on the Isle of Wight. Fossil collector Jack Wonfor, 24, and his 12 ...

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 ...