Subfamily
Isograptinae Harris, 1933
| Images | ||||||
|---|---|---|---|---|---|---|
| TUG 6-388-1 | Isograptus | Isograptus gibberulus (Nicholson, 1875) | Norra | Lower Ordovician | Arenig | |||
| TUG 6-393 | Isograptus gibberulus | Isograptus gibberulus (Nicholson, 1875) | Norra | Tremadocian | 3b | |||
| TUG 6-394a | Isograptus gibberulus | Isograptus gibberulus (Nicholson, 1875) | Norra | Tremadocian | 3b | |||
| TUG 6-404b | Isograptus gibberulus | Isograptus gibberulus (Nicholson, 1875) | Norra | Lower Ordovician | Arenig | |||
| TUG 6-412 | Isograptus gibberulus | Isograptus gibberulus (Nicholson, 1875) | Norra | Tremadocian | 3b |