|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Gastropoda - Bellerophontida - Pterothecidae
It was reranked as Patellilabia (Phragmosphaera) by Blodgett et al. (1999).
It was assigned to Knightitinae by Rollins et al. (1971); to Patellilabia by Blodgett et al. (1999); to Bellerophontida by Sepkoski (2002); and to Carinaropsinae by Knight et al. (1960) and Wagner (2017).
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