Tetragraptidae

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

Genera
List of genera from Maletz (2014):


 * †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