|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Redlichiida - Nevadiidae
If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
|A. R. Palmer and L. N. Repina 1993||Nevadiidae with border furrows weakly developed. Cephalon strongly convex transversely; posterior margin strongly curved backward. Glabella slightly tapered forward. Basal glabellar width about equal to wi(ltll of extraocular area. Lateral parts of poorly differentiated border nearly vertical. Ocular lobes poorly differentiated from interocular area; posterior tips about opposite occipital furrow.|