Pterobranchia - Graptoloidea - Dichograptidae
Parent taxon: Dichograptina according to J. Maletz et al. 2018
See also Bulman 1970, Fortey 2011, Lo Valvo et al. 2020, Maletz 2017, Maletz et al. 2009, Toro 1993, Toro and Maletz 2008 and Vento et al. 2012
Sister taxa: Phyllograptidae, Pterograptidae, Tetragraptidae
Subtaxa: Clonograptus Dichograpti Dichograptinae Dichograptus Didymograpti Didymograptus Goniograpti Loganograptus Orthodichograptus Schizograpti Temnograpti Tetragrapti
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Dobrotivian of France (1 collection), Portugal (3), Spain (1)
• Whiterockian of Canada (3: Newfoundland and Labrador), United States (2: Texas, Utah)
• Arenigian of Argentina (7), Canada (2: Northwest Territories), United States (2: Alaska)
• Klabava of Czechia (2), France (1)
• Arenig of Argentina (2), Australia (12), Bolivia (4), Canada (12: Newfoundland and Labrador, Yukon), Chile (1), China (78), France (4), Morocco (1), Norway (3), Sweden (3), the United Kingdom (3), United States (3: Alaska, Montana, Nevada)
• Ningkuo of China (19)
• Dawan of China (7)
• Ordovician of Argentina (20), Australia (7), Bolivia (5), Canada (17: Newfoundland, Newfoundland and Labrador, Northwest Territories, Northwest Terrorities, Quebec, Yukon), Chile (1), China (51), Colombia (1), Czechia (1), Estonia (1), France (6), Iran (3), Kazakhstan (1), Lithuania (6), Morocco (7), New Zealand (42), Norway (4), Peru (1), Portugal (2), the Russian Federation (30), Saudi Arabia (2), Spain (10), Sweden (4), the United Kingdom (4), United States (29: Alaska, British Columbia, California, Idaho, Nevada, New York, Texas, Utah), Venezuela (1)
• Canadian of Canada (1: Northwest Territories), United States (1: Nevada)
• Ibexian of United States (1: California)
Total: 435 collections including 644 occurrences