Sigmagraptidae

Sigmagraptidae is an extinct family of graptolites.^[1]

Sigmagraptidae
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Graptolithina
Order:	Graptoloidea
Family:	Sigmagraptidae Cooper & Fortey, 1982

Genera

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

• †Acrograptus Tzaj, 1969
• †Azygograptus Nicholson & Lapworth, 1875 in Nicholson (1875)
• †Eoazygograptus Obut & Sennikov, 1984
• †Eotetragraptus Bouček & Přibyl, 1951
• †Etagraptus Ruedemann, 1904
• †Goniograptus M’Coy, 1876
• †Hemigoniograptus Jin & Wang, 1977
• †Jiangnanograptus Xiao & Chen, 1990
• †Jishougraptus Ge, 1988
• †Keblograptus Riva, 1992
• †Kinnegraptus Skoglund, 1961
• †Laxograptus Cooper & Fortey, 1982
• †Maeandrograptus Moberg, 1892
• †Metazygograptus Obut & Sennikov, 1984
• †Oslograptus Jaanusson, 1965
• †Paradelograptus Erdtmann, Maletz & Gutiérrez-Marco, 1987
• †Paraulograptus Bouček, 1973
• †Pendeosalicograptus Jiao, 1981
• †Perissograptus Williams & Stevens, 1988
• †Praegoniograptus Rickards & Chapman, 1991
• †Prokinnegraptus Mu, 1974
• †Sigmagraptus Ruedemann, 1904
• †Taishanograptus Li & Ge, 1987 in Li, Ge & Chen (1987)
• †Trichograptus Nicholson, 1876
• †Wuninograptus Ni, 1981
• †Yushanograptus Chen, Sun & Han, 1964