Anisograptidae

Anisograptidae is an extinct family of graptolites. As the first planktic graptolites, they play a crucial role for understanding the transition of graptolites from ocean floor suspension feeders to ocean surface plankton during the early Ordovician.^[1]

Anisograptidae
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Graptolithina
Order:	Graptoloidea
Family:	Anisograptidae Bulman, 1950
Synonyms
†Graptodendroidina Mu & Lin, 1981

Anisograptids can be quadriradiate (Rhabdinopora, Staurograptus), triradiate (Anisograptus, Triograptus), or biradiate (Adelograptus, Kiaerograptus).^[1]

Genera

List of genera from Maletz (2014):^[2]

• †Adelograptus Bulman, 1941
• †Aletograptus Obut & Sobolevskaya, 1962
• †Ancoragraptus Jackson & Lenz, 2003
• †Anisograptus Ruedemann, 1937
• †Aorograptus Williams & Stevens, 1991
• †Araneograptus Erdtmann & VandenBerg, 1985
• †Bryograptus Lapworth, 1880
• †Chigraptus Jackson & Lenz, 1999
• †Choristograptus Legrand, 1964
• †Damesograptus Jahn, 1892
• †Dictyodendron Westergård, 1909
• †Dictyograptus Hopkinson, 1875 in Hopkinson & Lapworth (1875)
• †Dictyograptus Westergård, 1909
• †Diphygraptus Zhao & Zhang, 1985
• †Graptopora Salter, 1858
• †Heterograptus Zhao & Zhang in Lin, 1986
• †Holopsigraptus Zhao & Zhang, 1985
• †Hunjiangograptus Zhao & Zhang, 1985
• †Hunnegraptus Lindholm, 1991
• †Kiaerograptus Spjeldnaes, 1963
• †Muenzhigraptus Zhao & Zhang, 1985
• †Neoclonograptus Zhao & Zhang, 1985
• ? †Nephelograptus Ruedemann, 1947
• †Paraclonograptus Zhao & Zhang, 1985
• †Paratemnograptus Williams & Stevens, 1991
• †Phyllograpta Angelin, 1854
• †Psigraptus Jackson, 1967
• †Radiograptus Bulman, 1950
• †Rhabdinopora Eichwald, 1855
• †Sagenograptus Obut & Sobolevskaya, 1962
• †Staurograpsus Emmons, 1855
• ? †Stellatograptus Erdtmann, 1967
• †Toyenograptus Li, 1984
• †Triograptus Monsen, 1925
• †Triramograptus Erdtmann, 1998 in Cooper et al. (1998)
• †Yukonograptus Lin, 1981

References

1. Maletz, Jörg (2017). Graptolite Paleobiology. Wiley-Blackwell. ISBN 9781118515617.
2. Maletz, Jörg (2014). "The classification of the Pterobranchia (Cephalodiscida and Graptolithina)". Bulletin of Geosciences. 89 (3): 477–540. doi:10.3140/bull.geosci.1465. ISSN 1214-1119.