|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Trilobita - Redlichiida - Olenellidae
It was reranked as Olenellus (Paedeumias) by Palmer (1998); it was misspelled as Paedumias by Sepkoski (2002) and Jell and Adrain (2003).
It was assigned to Mesonacidae by Resser (1928); to Olenellus by Palmer (1998); to Olenellida by Sepkoski (2002); and to Olenellidae by Riccio (1952) and 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.