| extension | φ:Q→Aut N | d | ρ | Label | ID |
|---|
| C2.1(C23:Dic5) = C24.Dic5 | central extension (φ=1) | 80 | | C2.1(C2^3:Dic5) | 320,83 |
| C2.2(C23:Dic5) = C24.D10 | central extension (φ=1) | 80 | | C2.2(C2^3:Dic5) | 320,84 |
| C2.3(C23:Dic5) = (C2xC20):C8 | central extension (φ=1) | 160 | | C2.3(C2^3:Dic5) | 320,86 |
| C2.4(C23:Dic5) = C24:2Dic5 | central stem extension (φ=1) | 40 | 4 | C2.4(C2^3:Dic5) | 320,94 |
| C2.5(C23:Dic5) = C4:C4:Dic5 | central stem extension (φ=1) | 80 | | C2.5(C2^3:Dic5) | 320,95 |
| C2.6(C23:Dic5) = C10.29C4wrC2 | central stem extension (φ=1) | 80 | | C2.6(C2^3:Dic5) | 320,96 |
| C2.7(C23:Dic5) = (C22xC20):C4 | central stem extension (φ=1) | 80 | 4 | C2.7(C2^3:Dic5) | 320,97 |
| C2.8(C23:Dic5) = C42:Dic5 | central stem extension (φ=1) | 80 | 4 | C2.8(C2^3:Dic5) | 320,99 |
| C2.9(C23:Dic5) = C42.Dic5 | central stem extension (φ=1) | 80 | 4 | C2.9(C2^3:Dic5) | 320,100 |
| C2.10(C23:Dic5) = C42:3Dic5 | central stem extension (φ=1) | 40 | 4 | C2.10(C2^3:Dic5) | 320,103 |
| C2.11(C23:Dic5) = C42.3Dic5 | central stem extension (φ=1) | 80 | 4 | C2.11(C2^3:Dic5) | 320,106 |