Parent taxon: Graptoloidea according to J. Maletz et al. 2018
See also Lo Valvo et al. 2020 and Maletz 2014
Sister taxa: Apiograptus, Arienigraptus, Arnheimograptus, Axonophora, Bergstroemograptus, Bryograptidae, Crinitograptus, Dichograptacea, Didymograptidae, Didymograptina, Dimorphograptoides, Eisenackograptus, Eoglyptograptus, Euclimacograptus, Exigraptus, Glossograptina, 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: Dichograptidae Phyllograptidae Pterograptidae Tetragraptidae
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Dobrotivian of France (1 collection), Portugal (3), Spain (1)
• Chazyan of United States (2: Utah)
• Whiterockian of Canada (3: Newfoundland and Labrador), United States (5: Texas, Utah)
• Billingen of the Russian Federation (1)
• Klabava of Czechia (2), France (1)
• Arenig of Argentina (3), Australia (22), Bolivia (8), Canada (21: Newfoundland and Labrador, Yukon), Chile (1), China (87), France (4), Morocco (1), Norway (3), Spain (1), Sweden (3), the United Kingdom (3), United States (3: Alaska, Montana, Nevada)
• Arenigian of Argentina (7), Canada (2: Northwest Territories), United States (2: Alaska)
• Ningkuo of China (20)
• Dawan of China (8)
• Canadian of Canada (1: Northwest Territories), United States (3: Nevada, Utah)
• Ordovician of Argentina (25), Australia (9), Bolivia (6), Canada (21: Newfoundland, Newfoundland and Labrador, Northwest Territories, Northwest Terrorities, Ontario, Quebec, Yukon), Chile (1), China (58), Colombia (1), Czechia (1), Estonia (1), France (7), Iran (3), Kazakhstan (1), Lithuania (8), Morocco (9), New Zealand (46), Norway (5), Peru (2), Portugal (2), the Russian Federation (46), Saudi Arabia (2), Spain (15), Sweden (4), the United Kingdom (6), United States (39: Alaska, British Columbia, California, Idaho, Nevada, New York, Texas, Utah), Venezuela (1)
• Ibexian of United States (2: California)
Total: 543 collections including 1213 occurrences