Opalized ammonite fossils are some of the most unique and spectacular paleontological specimens. They were formed through a ...

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 ...

Koichi Fukuoka’s career as a copperplate engraver took an unexpected turn after he encountered fossils of ammonites, a spiral-shelled creature that lived in the age of the dinosaurs. The artist ...

ALADIN ABDEL NABY / Reuters / Corbis Not long after Amenhotep III died, in 1353 B.C., masons entered his mortuary temple and methodically chiseled out every mention of Amun, the god said to have ...