Pterobranchia - Graptoloidea - Anisograptidae
Synonym: Nephelograptidae Boucek 1957
Parent taxon: Graptodendroidina according to J. Maletz et al. 2017
See also Cho et al. 2009, Cooper et al. 1998, Maletz 2006, Maletz 2014, Maletz et al. 2010 and Monteros and Moya 2011
Sister taxon: Mastigograptidae
Subtaxa: Adelograptus Ancoragraptus Anisograptus Aorograptus Araneograptus Bryograptus Chigraptus Choristograptus Dictyograptus Hunnegraptus Kiaerograptus Paratemnograptus Psigraptus Radiograptus Rhabdinopora Ruedemannograptus Staurograptus Toyenograptus Triograptus
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Devonian of the Czech Republic (1 collection), Germany (1)
• Ningkuo of China (1)
• Arenig of Canada (1: Yukon), Norway (1)
• Ordovician of Argentina (3), Australia (9), Bolivia (2), Canada (8: Newfoundland and Labrador, Northwest Terrorities, Quebec), China (2), Estonia (6), New Zealand (6), Norway (8), the Russian Federation (2), Sweden (2), the United Kingdom (7), United States (3: Montana, Utah)
• Canadian of United States (2: Utah)
• Tremadoc of Argentina (4), Bolivia (5), Canada (31: New Brunswick, Newfoundland, Newfoundland and Labrador, Yukon), China (18), the Czech Republic (2), Morocco (1), Norway (2), the Russian Federation (3), Sweden (1), the United Kingdom (1), United States (3: New York, Texas)
• Cressagian of the United Kingdom (3)
• Ibexian of United States (1: Nevada)
• Skullrockian of Greenland (1)
Total: 141 collections including 310 occurrences