|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Agnostida - Diplagnostidae
It was reranked as Pseudagnostus (Pseudagnostina) by Shergold (1977).
It was assigned to Pseudagnostus by Shergold (1977); to Pseudagnostidae by Westrop et al. (1996); to Agnostida by Sepkoski (2002); and to Diplagnostidae by Jell and Adrain (2003).
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.