|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Tergomya - Tryblidiida - Tryblidiidae
It was assigned to Tryblidiinae by Yochelson (1958) and Knight and Yochelson (1960); to Bipulvinidae by Starobogatov (1970); to Tryblidiidae by Runnegar and Jell (1976); and to Tryblidiida by Sepkoski (2002).
|E. L. Yochelson 1958||Low, spoon-shaped monoplacophorans having the interior of the dorsum flattened for more than half of its length and set off from the anterior and posterior slopes; apex strongly anterior, just projecting over apertural margin ; five pairs of subtriangular lateral muscle scars located relatively high on lateral slopes, with some additional markings on anterior slope; ornament unknown; interior of shell with two furrows parallel to lines of muscle scars.|