|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Asaphida - Asaphidae
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.
|C. Callaway 1877||Oval, moderately convex; axial furrows tapering gradually backwards from where they meet the facial suture in front of the eye to two thirds the length of the tail; head and thorax about equal in length, tail shorter.|