Trilobites, arthropods. Invertebrates Animal Kingdom. Wildlife. Fauna. Zoology.

They are fossils that lived in the Cambrian Period, they are very important, because from them all current Arthropods were derived.

They were all sailors, covered by a shield to which segments were added according to the larva vat growing.

They have characters common to other groups of arthropods.

They are chelicerated arthropods, that is to say: they have articulated appendages and chelycer that serve to capture and hold their prey and take them to their mouths, which have it in the ventral region.

Your body is divided into cephalothorax and abdomen. They are marine and can measure up to 60 cm.

They are swimmers and diggers.

The abdominal legs are useful for swimming by doing it with the belly up.

They feed especially on mollusks and marine worms.

Reproduction is sexual and oviparous. The larva makes successive molts to the adult state, in about 10 years.

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Other information about fauna in Aragón:

A small list of species in Aragon would be the following:

Vertebrates	Invertebrates
Mammals Red squirrel. Bear. Fox. Artiodactyl Ungulates Deer. Wild pig. Birds Classification of Birds Storks. Capercaillies. Reptiles Amphibians Urodelos.    Marbled Triton.    Webbed Triton.    Pyrenean triton. Anurans. Fishes	Metazoans Arthropods Myriapods Insects Arachnids Spiders Crustaceans Annelids Worm Molluscs Asquelmintos Platelmintos Celentereos Porifera Protozoa
images about the fauna in Aragon.    photographs on invertebrates.    beneficial animals for agriculture.

Also Aragon enjoys a diverse and varied Nature where passing by plants, animals, Geology, or landscapes we can arrive at a fantastic bestiary that lives in its monuments.

The information will not be complete without a stroll by its three provinces, with shutdown in some of its spectacular landscapes like Ordesa, the Moncayo, Monegros or by opposition the Ebro.

Also you can dedicarte to the intangible ones: from the legend compilation that also does to universal Aragon.