Archaeogastropoda Thiele, 1925
Worthenia alticarinata
Worthenia arizonensis
Worthenia bialveozona
Worthenia bicarinata
Worthenia canalifera
Worthenia corrugata
Worthenia crenilunula
Worthenia crenulata
Worthenia kingi
Worthenia latialveozona
Worthenia legrandi
Worthenia parvula
Worthenia pilula
Worthenia planalveozona
Worthenia schirjaevensis
Worthenia speciosa
Worthenia strigillata
Worthenia tabulata
Worthenia tongxinensis
Worthenia windowblindensis
Yochelsonospira mississippiensis
Yochelsonospira nauvooensis
Yochelsonospira northviewensis
Yochelsonospira tenuilineata
Yochelsonospira thomasi
