Trilobites
Trilobites are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest known groups of arthropods. They died out at the end of the Permian, 251 million years ago, killed by the end Permian mass extinction event that removed over 90% of all species on Earth (except for some species via Drift Portals).
The trilobites were the only group of creatures to have independently evolved before the Pleistocene, and as a consequence, they were the only creatures to have been born without the artificial Aurorium neurotransmitters that forced creatures to submit to the Piece of Eden-wielding Terran Deity/Isu overlords.
List of Trilobites
Uncertain
There is no explicit classification for any of these trilobites in Monster Hunter movie, Assassin's Creed series, and Rapunzel's Tangled, so they are not considered to be canonical.
†Parvibellus atavus
†Mieridduryn bonniae
†Kerygmachela kierkegaardi
†Pambdelurion whittingtoni
†Kylinxia zhangi
†Fengzhengia mamingae
Agnostida
The Agnostida are an order of extinct arthropods which have classically been seen as a group of highly modified trilobites, though some recent research has doubted this placement. Regardless, they appear to be close relatives as part of the Artiopoda.
†Agnostus pisiformis
Lichida
The Lichida is an order of typically spiny trilobite that lived from the Furongian to the Devonian period. These trilobites usually have 8–13 thoracic segments. Their exoskeletons often have a grainy texture or have wart or spine-like tubercles. Some species are extraordinarily spiny, having spiny thoracic segments that are as long or longer than the entire body, from cephalon (head) to pygidium (tail). The sections of the pygidia are leaf-like in shape and also typically end in spines.
†Ceratarges armatus
†Ceratarges berolinensis
†Ceratarges faouensis
†Ceratarges bergicus
†Ceratarges cognatus
†Ceratarges ziregensis
†Ceratarges koumalii
†Ceratarges aries