|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Bivalvia - Cardiida - Montacutidae
It was assigned to Leptonidae by Ward and Blackwelder (1987); to Galeommatidae by Lamprell and Healy (1998); to Veneroida by Sepkoski (2002); and to Montacutidae by Vokes (1980), Beu et al. (1990), Wienrich (1999), Marquet (2005) and Schneider et al. (2005).
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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.