|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Phacopida - Encrinuridae
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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.
|R. P. Tripp 1974||Glabella relatively narrow anteriorly, strongly, convex; frontal lobe about half length of glabella, with relatively few tubercles. Tubercle formula: I-1; II-111-1,2,3; (iv-0); IV-1,2,(3); V-1,2. False preglabellar field marked off posteriorly by a shallow furrow. Pygidium with six pairs of pleurae.|