Isograptidae

Isograptidae is an extinct family of graptolites.

Genera
List of genera from Maletz (2014):


 * †Arienigraptus Yu & Fang, 1981
 * †Cardiograptus Harris & Keble, 1916 in Harris (1916)
 * †Isograptus Moberg, 1892
 * †Oncograptus Hall, 1914
 * †Paracardiograptus Mu & Lee, 1958
 * †Parisograptus Chen & Zhang, 1996
 * †Procardiograptus Xiao, Xia & Wang 1985
 * †Proncograptus Xiao, Xia & Wang, 1985
 * †Pseudisograptus Beavis, 1972
 * †Xiushuigraptus Yu & Fang, 1983