Synonym: Bireclinata Maletz et al. 2009
Parent taxon: Graptoloidea according to J. Maletz 2014
See also Bulman 1970 and Maletz et al. 2009
Sister taxa: Apiograptus, Arienigraptus, Arnheimograptus, Axonophora, Bergstroemograptus, Bryograptidae, Crinitograptus, Dichograptacea, Dichograptina, Didymograptidae, Didymograptina, Dimorphograptoides, Eisenackograptus, Eoglyptograptus, Euclimacograptus, Exigraptus, Graptodendroidina, Hirsutograptus, Joamgsjamotes, Kinnegraptidae, Laxograptus, Lenzograptus, Metabrograptus, Monograptina, Neocolonograptus, Neocucullograptus, Neodicellograptus, Neolobograptus, Parapetalolithis, Pararetiograptus, Plectodinemagraptus, Pseudamplexograptus, Pseudoisograptus, Pseudomonoclimacis, Pseudoplectograptus, Pseudorthograptus, Rivagraptus, Semiplectograptus, Sinograpta, Sinograptina, Sinoreteograptus, Stromatograptus, Uncinatograptus, Urbanekograptus, Virgellina
Subtaxa: Cyrtograptidae Glossograptidae Isograptidae
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Silurian of Algeria (3 collections), Australia (1), Canada (4: British Columbia, Northwest Territories, Nunavut), China (5), the Czech Republic (7), Denmark (3), France (1), Greenland (1), Lithuania (1), Morocco (4), Serbia and Montenegro (2), Spain (1), Ukraine (2), the United Kingdom (1), United States (3: Alaska, Idaho, Oklahoma)
• Dobrotivian of the Czech Republic (1)
• Whiterockian of Canada (4: Newfoundland and Labrador), United States (1: Texas)
• Yapeenian of New Zealand (39)
• Volkhov of Lithuania (2)
• Arenigian of Canada (2: Northwest Territories), United States (3: Alaska)
• Ningkuo of China (12)
• Arenig of China (9), Morocco (1), Norway (2), the United Kingdom (1), United States (1: Nevada)
• Ordovician of Argentina (10), Australia (2), Bolivia (1), Canada (9: British Columbia, New Brunswick, Newfoundland and Labrador, Northwest Territories, Quebec, Québec, Yukon), China (35), Lithuania (1), New Zealand (27), Norway (3), Peru (1), the Russian Federation (15), Sweden (3), the United Kingdom (2), United States (38: Alaska, British Columbia, Idaho, Michigan, Nevada, New York, Oklahoma), Venezuela (1)
• Tremadoc of China (1)
Total: 266 collections including 441 occurrences