Alphabetical Listing of Families within this Taxa Group:
family
Aulacothyropsidae
T4072459
family
Basiliolidae
T4072451
family
Bouchardiidae
T4072462
family
Cancellothyrididae
T4072175
family
Chlidonophoridae
T4072456
family
Cryptoporidae
T4072172
family
Dallinidae
T4072176
family
Dyscoliidae
T4072455
family
Dyscolioidea incertae sedis
T4072757
family
Frenulinidae
T4072460
family
Frieleiidae
T4072173
family
Hemithirididae
T4072174
family
Kingenidae
T4072458
family
Kraussinidae
T4072177
family
Laqueidae
T4072368
family
Megathyrididae
T4072178
family
Notosariidae
T4072452
family
Platidiidae
T4072179
family
Terebrataliidae
T4072461
family
Terebratellidae
T4072463
family
Terebratulidae
T4072180
family
Thecideidae
T4072454
family
Thecidellinidae
T4072453
family
Zeilleriidae
T4072457