Hundred species of the genus Peronopsis Hawle et Corda, 1847

Eodiscina

Condylopygidae

The Condylopygidae are a family of very small trilobites, that lived during the Middle Cambrian, and has been found in Canada (Newfoundland and Nova Scotia), the Czech…

Diplorrhina

Diplorrhina is a genus of trilobites, a well known class of extinct marine arthropods.

Itagnostus

Itagnostus is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America.

Pentagnostus

Pentagnostus is a genus of trilobites restricted to the Middle Cambrian. Its remains have been found in Siberia, Australia, North America, Scandinavia, and Kazakhstan.

Eoagnostus

Eoagnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites.

Eodiscina

Eodiscina is an suborder of trilobites, a well known group of marine arthropods. The Eodiscina first developed near the end of the Lower Cambrian period (late Atdabanian…

Agnostus

Agnostus is a genus of agnostid trilobites that lived during the upper Middle Cambrian–lower Upper Cambrian (approximately 506 to 492 million years ago).

Peronopsis

Peronopsis is a genus of trilobite restricted to the Middle Cambrian. Its remains have been found in Asia, Australia, Europe, and North America.

Acadagnostus

Acadagnostus is a genus of trilobite from the Middle Cambrian, with 7 species currently recognized.

Archaeagnostus

Archaeagnostus is an extinct genus from a well-known class of fossil marine arthropods, the trilobites.

Peronopsidae

The Peronopsidae (which may also be called peronopsids) comprise the earliest family of the Agnostina suborder.