Dichograptidae

Dichograptidae is an extinct family of graptolites. Fossils are found mostly from the Late Ordovician to the Early Devonian.^[1]

Dichograptidae
Didymograptus murchisoni
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Graptolithina
Order:	Graptoloidea
Family:	Dichograptidae Lapworth, 1873

Genera

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

• †Anthograptus Törnquist, 1904
• †Calamograptus Clark, 1924
• †Clonograpsus Nicholson, 1873
• †Ctenograptus Nicholson, 1876
• †Dichograpsus Salter, 1863
• †Hermannograptus Monsen, 1937
• †Holograptus Holm, 1881a
• †Kellamograptus Rickards & Chapman, 1991
• †Kstaugraptus Tzaj, 1973
• †Loganograptus Hall, 1868
• †Mimograptus Harris & Thomas, 1940
• †Orthodichograptus Thomas, 1972
• †Rouvilligraptus Barrois, 1893
• †Schizograptus Nicholson, 1876
• †Temnograptus Nicholson, 1876
• †Triaenograptus Hall, 1914
• †Tridensigraptus Zhao, 1964
• †Trochograptus Holm, 1881a

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.