|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
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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.
|P. Y. Parkhaev and Y. Demidenko 2010||"Bilaterally symmetrical, widely conical flattened elements with bent convex tooth and elongated, expanded base. Anterior side of element narrow, rounded convex. Posterior side narrow, arched. Lateral sides wide and flattened, concave or slightly convex. Basal cavity deep. Angle of tooth inclination varies greatly. Tooth cross-section circular or oval. Base cross-section oval, pyriform or drop-like. External surface smooth or with longitudinal striae. Chemical composition of elements calcium phosphate."|