The brilliant iridescent hues found in ammolite come from tiny air gaps in the fossils’ layers, a new study finds.

Ammolite comes from the fossilized shells of extinct squidlike critters called ammonites. Scientists knew the secret to the fossils’ flamboyant appearance lay somewhere in their layers of nacre, or ...

Left: 3D reconstruction. Right: Labelled internal organs. Credit: Cherns et al. For the first time, researchers have revealed the soft tissues of a 165-million-year-old ammonite fossil using 3D ...

An enormous fossil weighing almost 210 pounds and measuring around two feet in diameter has been found on the Isle of Wight. The ammonite was spotted and pried loose from surrounding rock by ...

A shelled fossil discovered in an amateur’s collection may harbor the first direct evidence of prehistoric sharks eating ammonites some 150 million years ago. The palm-sized ammonite, an extinct ...

Beautifully preserved fossil ammonite collected from 165-million-year-old Jurassic site in Gloucestershire, UK; 3D reconstruction of combined neutron and X-ray images of fossil shows internal muscles ...

The muscles and organs of an ammonite — an extinct relative of cuttlefish and squid with coiled shells and tentacles — have been reconstructed in 3D for the first time. The achievement has allowed a ...

One of the distinguishing characteristics of Ohio’s indigenous American Indian Hopewell culture, which dates from around AD 1 to 400, is the use of unusual raw materials that found their way into Ohio ...

There's rarely time to write about every cool science-y story that comes our way. So this year, we're once again running a special Twelve Days of Christmas series of posts, highlighting one science ...

Naomi was bored. A 6-year-old can stay riveted by her older sister’s soccer game for only so long. So she went over to some sagebrush by the soccer field, poked around in the dirt, and picked up a ...

Researchers have revealed the soft tissues of a 165-million-year-old ammonite fossil using 3D imaging. They found that the now-extinct molluscs sported hyponomes: tube-like syphons through which water ...