Tetragraptidae

Tetragraptidae Temporal range: Floian–Darriwilian PreꞒ Ꞓ O S D C P T J K Pg N
Scientific classification
Kingdom:	Animalia
Phylum:	Hemichordata
Class:	Graptolithina
Order:	Graptoloidea
Family:	Tetragraptidae Frech, 1897

Tetragraptidae is an extinct family of graptolites from the Floian to Darriwilian epochs of the Ordovician Period.^[1]

Genera

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

• †Corymbograptus Obut & Sobolevskaya, 1964
• †Paratetragraptus Obut, 1957
• †Pendeograptus Bouček & Přibyl, 1951
• †Phyllograptus Hall, 1858
• †Pseudophyllograptus Cooper & Fortey, 1982
• †Pseudotrigonograptus Mu & Lee, 1958
• †Tetragraptus Salter, 1863
• †Tristichograptus Jackson & Bulman, 1970

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.