Pterobranchia - Graptoloidea - Didymograptidae
Parent taxon: Graptoloidea according to J. Maletz and M. Slovacek 2013
See also Lo Valvo et al. 2020
Sister taxa: Apiograptus, Arienigraptus, Arnheimograptus, Axonophora, Bergstroemograptus, Bryograptidae, Crinitograptus, Dichograptacea, Dichograptina, 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, Sudburigraptus, Uncinatograptus, Urbanekograptus, Virgellina
Subtaxa: Baltograptus Cymatograptus Expansograptus
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Yapeenian of New Zealand (4 collections)
• Arenig of Argentina (4), Australia (1), Bolivia (1), Canada (6: Yukon)
• Klabava of the Czech Republic (1)
• Arenigian of Argentina (6)
• Ordovician of Argentina (8), Australia (1), Bolivia (1), Canada (1: British Columbia), Chile (1), China (1), the Czech Republic (1), Morocco (2), New Zealand (1), the Russian Federation (17), Spain (3)
Total: 60 collections including 105 occurrences