Ammonites (subclass Ammonoidea) can be distinguished by their septa, the dividing walls that separate the chambers in the phragmocone, by the nature of their sutures where the septa join …

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 …

Nov 13, 2020 · Ammonite: Directed by Francis Lee. With Kate Winslet, Gemma Jones, James McArdle, Sarah White. 1840s England, acclaimed but overlooked fossil hunter Mary Anning …

Aug 15, 2025 · Ammonites were shelled marine mollusks in the class Cephalopoda, related to modern octopuses, squids, and nautiluses. They possessed an external, chambered shell, …

Jul 20, 2025 · A newly found icy object, Ammonite, may be a 4-billion-year-old fossil from the Solar System’s edge—and it’s casting doubt on the Planet Nine theory.

Jul 6, 2023 · Ammonites are extinct marine mollusks that lived from the Devonian to the end of the Cretaceous Period, roughly 400 to 66 million years ago. They are among the most important …

Ammonite, any member of an ancient Semitic people whose principal city was Rabbath Ammon, in Palestine. The “sons of Ammon” were in perennial, though sporadic, conflict with the Israelites.

With squidlike tentacles extending from their distinctive multichambered shells, the extinct marine predators known as ammonites were once among the most successful and diverse animals on …

Ammonites are a distinctive class of extinct invertebrates within the Phylum Mollusca. These spectacular looking marine animals thrived in the Paleozoic and Mesozoic Eras, which …

Ammonites began life as tiny planktonic creatures less than 1mm in diameter. In their infancy they would have been vulnerable to attack from other predators, including fish; however, they …