| Tetragraptidae Temporal range:   | |
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| 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
- ↑ Maletz, Jörg (2017). Graptolite Paleobiology. Wiley-Blackwell. ISBN 9781118515617.
 - ↑ 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.
 
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