Trilobite

Trilobites are extinct arthropods class who lived in ancient seas on Earth. They appeared in the Cambrian and live in the lower Paleozoic before gradually die.Last trilobites disappeared in the mass extinction at the end of the Permian 250 million years ago.Trilobites disappear even before the existence of dinosaurs, and are one of the key things in Paleozoic era, the first era in which they spread complex life forms.Although dinosaurs are one of the best-known fossil animal trilobites are one of my favorite fossils for collectors and people familiar with Paleontology.Trilobite can be found in rocks of each kontinetite.Trilobitite are very well known species of fossils and probably the second most famous fossil group after the dinosaurs.They are one of the most diverse group of animals in the register of fossil consisting of nine orders and more than 15 000 species. Currently trilobites are listed with the group Helitserovi Arachnomorpha.Most of them were simple small marine creatures that filtered mud to eat. Inhabited ancient marine basins. The dorsal side were hard hitinov shield.It is divided into 3 parts: glavov department (tsefalon) unit body (thorax) and the caudal division (pigidium).