Atrypidae
Atrypa
Atrypa reticularis
Nucleospira
Nucleospira concinna
Pseudoatrypa
Pseudoatrypa devoniana
Pseudoatrypa keslingi
Pseudoatrypa reticularis
Spinatrypa
Spinatrypa sinuata
Spinatrypa spinosa
Spinatrypa spinosa milwaukeensis