Tetragraptidae is an extinct family of graptolites from the Floian to Darriwilian epochs of the Ordovician Period. List of genera from Maletz (2014): †Corymbograptus...
2 KB (91 words) - 15:16, 7 February 2021
Family †Didymograptidae Mu, 1950 Family †Pterograptidae Mu, 1950 Family †Tetragraptidae Frech, 1897 Suborder †Glossograptina Jaanusson, 1960 Family †Isograptidae...
35 KB (3,463 words) - 19:07, 1 July 2024
1994 Corymbograptus Tetragraptidae Obut & Sobolevskaya, 1964 Paratetragraptus Tetragraptidae Obut, 1957 Pendeograptus Tetragraptidae Bouček & Přibyl, 1951...
42 KB (479 words) - 18:54, 6 January 2024