Odontopleuridae

alt=Fossil Trilobite Dicranurus monstrosus|thumb|Dicranurus monstrosus

Leonaspis is a widespread genus of odontopleurid trilobite that lived from the Late Ordovician to the late Middle Devonian. Fossils of various species have been found on all continents except Antarctica.

Selenopeltis () is an extinct genus of odontopleurid trilobites in the family Odontopleuridae.

Acidaspis is an extinct genus of odontopleurid trilobite from the Ordovician to Silurian of North America and Europe. Although small, it had long spines along its body.

Odontopleuridae is a family of odontopleurid trilobites found in marine strata throughout the world. The family is Late Cambrian to Frasnian in age. The members of Odontopleuridae are known for their spinose appearance, having long, often numerous spines along the edges of their exoskeletons, and derived from ends of segments or tubercle ornaments.