Ammonites (Ammonite sp), extinct marine cephalopod molluscs that appeared in the middle of the Paleozoic Era (about 400 Ma ago) in the Lower Devonian and lasted until the Cretaceous-Paleogene extinction event, inhabited the oceans for more than 300 million years .
They were characterized by their spiral shells and internal chambers, which allowed them to adjust their buoyancy and control their position in the water. The shell was composed mainly of aragonite, a type of calcium carbonate, and could have different patterns and ornamentation. Said spiral chamber also served to enclose the soft parts of the body and they had a horny beak with which they caught their prey. Said body could be retracted and enclosed in its shell by means of a horny operculum.
Ammonites were predatory animals that fed mainly on crustaceans, fish, and other mollusks. Some species were very large, reaching sizes of up to 2 meters in diameter and many other species were very small.
Currently, ammonites are extinct and are only known through their fossils, which have been found all over the world and are highly valued by collectors and scientists as they provide information about evolution and the history of life. on earth.
The Model Pose represents a specimen of Ammonites sp expelling water through its siphon in order to control buoyancy.
Approximate measurements of the replica:
90 x 40 x 90 mm H
