|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
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.
|W. Hantzschel 1975||Netlike pattern of grooves on outer surface of pelecypod shells; grooves nearly as deep as wide, about 0.1 to 0.3 mm, which do not seem to connect with other borings.|