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), Czechia (7), Denmark (3), France (1), Greenland (1), Lithuania (1), Morocco (4), Serbia (2), Spain (1), Ukraine (2), the United Kingdom (1), United States (3: Alaska, Idaho, Oklahoma)
• Dobrotivian of Czechia (1)
• Whiterockian of Canada (4: Newfoundland and Labrador), United States (1: Texas)
• Arenig of China (9), Morocco (1), Norway (2), the United Kingdom (1), United States (1: Nevada)
• Arenigian of Canada (2: Northwest Territories), United States (3: Alaska)
• Ningkuo of China (12)
• Ordovician of Argentina (10), Australia (2), Bolivia (1), Canada (9: British Columbia, New Brunswick, Newfoundland and Labrador, Northwest Territories, Quebec, Québec, Yukon), China (36), Lithuania (3), New Zealand (51), 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)
Total: 251 collections including 438 occurrences