Genus

Dicranograptus Hall, 1865

Images
GIT 341-55
Dicranograptus clingani | Campograptus clingani (Carruthers, 1868)
971.43 Aeronian
GIT 526-66
Dicranograptus clingani | Campograptus clingani (Carruthers, 1868)
Upper Ordovician | Lower Hartwell Formation, Caradoc
GIT 709-3
Dicranograptus spinifer | Dicranograptus spinifer (Ellest et Wood, 1904)