Taxonomic Filter: Unresolved Central Thesaurus

Taxa Count: 47

BILLINGSELLIDAE

Billingsella

Billingsella alata

Billingsella anomala

Billingsella aojii

Billingsella appalachia

Billingsella archais

Billingsella bivia

Billingsella borukaevi

Billingsella coloradoensis

Billingsella coloradoensis notorcadensis

Billingsella corrugata

Billingsella corrugata inornata

Billingsella dice

Billingsella exasperata

Billingsella exporrecta

Billingsella exporrecta rugosicostata

Billingsella harlanensis

Billingsella highlandensis

Billingsella lindstromi

Billingsella major

Billingsella marion

Billingsella minima

Billingsella obscura

Billingsella olen

Billingsella orientalis

Billingsella origin

Billingsella perfecta

Billingsella perfecta pyriformis

Billingsella plicatella

Billingsella pumpellyi

Billingsella radiata

Billingsella rectangulata

Billingsella rhomba

Billingsella richthofeni

Billingsella romingeri

Billingsella saffordi

Billingsella salemensis

Billingsella simplex

Billingsella striata

Billingsella texana

Billingsella weedi

Billingsella whitfieldi

Billingsella willisi

Cymbithyris hami

Xenorthis aequicostellata

Xenorthis jonasae

Xenorthis stosei