Frankeina acutocarinata
Frankeina beisseli
Frankeina commutata
Frankeina cushmani
Frankeina goodlandensis
Frankeina incerta
Frankeina insolita
Frankeina rugosissima
Frankeina taylorensis
Frankeina wenoensis
Rhabdogonium haeringenses
Rhabdogonium martensi
Rhabdogonium roemeri
Tetraplasia georgsdorfensis
Triplasia bartensteini
Triplasia deadericki
Triplasia emslandensis
Triplasia glenrosensis
Triplasia grosserugosa
Triplasia kingakensis
Triplasia loeblichi
Triplasia marwicki
Triplasia mexicana
Triplasia murchisoni
Triplasia nodosa
Triplasia plummerae
Triplasia pseudoroemeri
Triplasia saratogensis
Triplasia variabilis
Triplasia wilcoxensis