|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Strophomenata - Productida - Strophalosiidae
It was reranked as Girlasia by Muir-Wood and Cooper (1960), Williams et al. (2000) and Sepkoski (2002).
It was assigned to Strophalosia by de Gregorio (1930); to Echinosteginae by Muir-Wood and Cooper (1960) and Williams et al. (2000); and to Strophomenida by Sepkoski (2002).
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.