Genus

Petraia Münster, 1839

Images
TUG 1368-66
Petraia expansa | Petraia expansa Hall, 1852
Nabala Stage | ?
GIT 406-161 Vormsi Stage
GIT 406-171
Petraia inflata | Petraia inflata Dybowski, 1873 non depicta
GIT 406-172
Petraia inflata | Petraia inflata Dybowski, 1873 non depicta
GIT 406-684Kopliranna Nabala Stage