|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Trilobita - Phacopida - Phacopidae
It was reranked as Prokops by Sepkoski (2002) and Sandford (2004).
It was assigned to Phacops by Chlupac (1971); to Phacopida by Sepkoski (2002); and to Phacopinae by Sandford (2004).
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.