in your fat belly
ammonites are extinct
Ammonites went extinct at the same time as the dinosaurs, about sixty-five million years ago.
in the Mesozoic and Paleozoic era
Alas, they live no more: they're all extinct. Died in the same catastrophe that killed the dinosaurs.
Ammonites are named for the Egyptian god Ammon, who had a ram's head. The shells of ammonites are spirals like the horns of a ram.
Various aquatic reptiles were predators of ammonites. Fossils of damaged ammonites have been found with teeth marks from Plesiosaurs.
Modern-day ammonites do not exist, as they are an extinct group of marine mollusks that thrived during the Mesozoic Era. They are closely related to today's cephalopods, such as squids and octopuses. While ammonites themselves are gone, their lineage has evolved into various living cephalopod species, which inhabit oceans worldwide.
During the time of ammonites, which thrived from the Late Devonian to the end of the Cretaceous period, a variety of marine animals coexisted with them. These included dinosaurs like plesiosaurs and ichthyosaurs, as well as other mollusks such as belemnites and various bivalves. Additionally, sharks and rays, along with numerous species of fish, were also prevalent in the oceans during that era. The rich marine ecosystems fostered a diverse array of life forms around ammonites.
Squid
Ammonites first appeared during the Devonian Period within the Paleozoic Era.
Yes, ammonites are good index fossils because they had a wide geographical distribution and existed for a long period of time. Their evolution is well-documented, making them useful for relative dating of rock layers.
Ammonites went extinct at the end of the Cretaceous Period.