What is "selenopeltis"

Selenopeltis is an extinct genus of odontopleurid trilobite in the family Odontopleuridae.

Species in the genus Selenopeltis can reach a length of and a width of . These trilobites show long pleural spines and were a low-level epifaunal detritivore. They lived in the Ordovician period, from the Lower Arenig stage age until the Ashgillian age (478.6-443.7 million years ago).