Ammonites are extinct marine mollusks that thrived ... as they help slow down the decomposition processes While several types of ammonite fossils exist, none are probably more spectacular than ...

Ammonite types with typical swirls are called “regular ... They said the fossils are different from other ammonites at the genus level because their irregular paper-clip pattern starts to ...

Much of this rich life—including all dinosaurs, pterosaurs, pliosaurs, and ammonites—perished in the extinction event at the end of the period 65 million years ago. In fact, the land ...