''Gymnagnostus'' is a genus of

trilobite Trilobites (; meaning "three lobes") are extinct marine arthropods that form the class Trilobita. Trilobites form one of the earliest-known groups of arthropods. The first appearance of trilobites in the fossil record defines the base of the At ...

in the order

Agnostida Agnostida is an order of arthropod 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. They a ...

, which existed in what is now

Oaxaca Oaxaca ( , also , , from nci, Huāxyacac ), officially the Free and Sovereign State of Oaxaca ( es, Estado Libre y Soberano de Oaxaca), is one of the 32 states that compose the political divisions of Mexico, Federative Entities of Mexico. It is ...

, Mexico. It was described by Robison and Pantoja-Alor, in 1968, and the type species is ''Gymnagnostus gongros''.Available Generic Names for Trilobites
P.A. Jell and J.M. Adrain.

References

Agnostidae Fossils of Mexico Paleozoic life of Newfoundland and Labrador {{agnostida-stub