|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Xiphosura - Sessilia - Scalpellidae
It was reranked as Scaevogyra (Versispira) by Perner (1911).
It was assigned to Scaevogyra by Perner (1911); to Onychochilidae by Linsley and Kier (1984); to Hyperstrophina by Sepkoski (2002); and to Scaevogyrinae by Knight et al. (1960) and Wagner (2020).
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.