Graptolite genera

thumb|Monograptus sp. from the Wenlock of Vailhan, Hérault, France. 12 cm block. Graptolites preserved in three dimensions.

Didymograptus is an extinct genus of graptolites with four rows of cups. They lived during the Middle Ordovician, to Late Ordovician.

Tetragraptus is an extinct genus of graptolites from the Ordovician period.

Phyllograptus is a graptolite genus of the order Graptoloidea, in the family Tetragraptidae.