|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Bursidae (frog shell)
Gastropoda - Bursidae
It was assigned to Tonnacea by Squires (1984); to Mesogastropoda by Squires (1988); and to Tonnoidea by Ponder and Warén (1988), Beesley (1998), Todd (2001), Bouchet et al. (2005), Beu (2005), Beu (2010) and Beu et al. (2012).
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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.