|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Agnostida - Metagnostidae
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.
|J. A. Weir 1959||Corrugatagnostus with median furrow on preglabellar field reaching anterior border, flanked by two converging furrows not reaching border. Antcrior and middle glabellar lobes bearing elongate median ridges.|