are squid-like predator animals with fast movements. Living in shallow
water, they grew up to 2.5 meters in diameters. They lived for about
200 million years and were extinct 65 million years ago.
are one of the most common groups of fossils used for dating geologic
rock layers. In some locations in Jordan, such as the Ajloun region,
ammonites can be found in building stone especially when sliced for
use as marble. In other locations, as in Pella, they can be hardly recognized
as their hard shells are pressed together and integrated in soft limestone.