Biceratopsinae

Biceratopsinae Temporal range: Toyonian (Upper Olenellus-zone) 516–513 Ma PreЄ Є O S D C P T J K Pg N ↓
Emigrantia sp., a cephalon
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	Trilobita
Order:	Redlichiida
Suborder:	Olenellina
Superfamily:	Olenelloidea
Family:	Biceratopsidae
Subfamily:	Biceratopsinae (Pack & Gayle, 1971)
Genera
Biceratops Pack & Gayle, 1971 (Type) Bolbolenellus Palmer and Repina, 1993 Emigrantia nomen nudum Eopeachella Webster, 2009 Nephrolenellus Palmer and Repina, 1993 Olenelloides (Peach, 1894) Paranephrolenellus Webster, 2007 Peachella (Walcott, 1910)

The Biceratopsinae is an extinct subfamily of trilobites, fossil marine arthropods, with species of small to average size. Species belonging to this subfamily lived during the Toyonian stage (Upper Olenellus-zone), 516-513 million years ago, in the former continent of Laurentia, including what are today the South-Western United States and Canada.

The Biceratopsinae are named for the type species Biceratops nevadensis.

The Biceratopsinae were probably marine bottom dweller, like all Olenellina.