Tryblidium
Tryblidium is a paleozoic genus of Ordovician and Silurian monoplacophorans.
The generic name comes from the Greek, which means patella.
Species
Species in the genus Tryblidium include:Tryblidium acutumTryblidium arcticaTryblidium eratoTryblidium eubuleTryblidium exsertaTryblidium hyrieTryblidium modestumTryblidium niobeTryblidium nycteisTryblidium ovaleTryblidium ovatumTryblidium pileolumTryblidium reticulatumTryblidium rugosumTryblidium simplex- ''Tryblidium thorsteinssoni''