Family
Tetradellidae Swartz, 1936
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 1041-3 | Glossomorphites digitatus | Glossomorphites digitatus (Krause, 1889) | Volkhov Stage | ||||
| TUG 1041-4 | Glossomorphites digitatus | Glossomorphites digitatus (Krause, 1889) | Volkhov Stage | ||||
| TUG 1045-17 | Hesslandella macroreticulata | Hesslandella macroreticulata (Hessland, 1949) | Middle Ordovician | ||||
| TUG 1045-18 | Hesslandella macroreticulata | Hesslandella macroreticulata (Hessland, 1949) | Middle Ordovician | ||||
| TUG 1045-19 | Vittella sigma | Entomis sigma Krause, 1889 | Middle Ordovician | ||||
| TUG 1045-20 | Vittella sigma | Entomis sigma Krause, 1889 | Middle Ordovician | ||||
| TUG 1045-4 | Ogmoopsis bocki | Ogmoopsis bocki (Öpik, 1935) | Middle Ordovician | ||||
| TUG 1045-6 | Glossomorphites grandispinosus | Glossomorphites grandispinosus (Hessland, 1949) | Middle Ordovician | ||||
| TUG 1045-7 | Glossomorphites digitatus | Glossomorphites digitatus (Krause, 1892) | Middle Ordovician | ||||
| TUG 1045-8 | Glossomorphites digitatus | Glossomorphites digitatus (Krause, 1892) | Middle Ordovician |