Soorten
- Petalium alaseriatum Ford, 1973
- Petalium alternatum Ford, 1973
- Petalium arizonense Fall, 1905
- Petalium bicolor Fall, 1905
- Petalium bistriatum (Say, 1825)
- Petalium brevisetum Ford, 1973
- Petalium californicum Fall, 1905
- Petalium debile Fall, 1905
- Petalium debilitatum Ford, 1973
- Petalium demicarinatum Ford, 1973
- Petalium evolutum Ford, 1973
- Petalium globulum Ford, 1973
- Petalium grossum Ford, 1973
- Petalium incarinatum Ford, 1973
- Petalium incisum Ford, 1973
- Petalium knulli Ford, 1973
- Petalium longulum Ford, 1973
- Petalium parmatum Baudi di Selve, 1874
- Petalium schwarzi Fall, 1905
- Petalium seriatum Fall, 1905
- Petalium uniperforatum Ford, 1973
- Petalium werneri Ford, 1973
- Petalium whitei Ford, 1973
- Petalium yuccae Fall, 1905
Bronnen, noten en/of referenties