Pterobranchia - Graptoloidea - Dichograptidae
Synonyms: Nicholsonograptus Boucek and Pribyl 1951, Pseudazygograptus
Parent taxon: Didymograpti according to O. M. B. Bulman 1970
See also Sepkoski 2002, Skwarko 1962 and Toro and Herrera Sánchez 2019
Sister taxa: Atopograptus, Janograptus, Maeandrograptus, Oncograptus, Parazygograptus, Skiagraptus
Subtaxa: Azygograptus ellesi Azygograptus lapworthi Azygograptus novozealandicus Nicholsonograptus fasciculatus
Type: Azygograptus lapworthi
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Volkhov of Lithuania (2 collections)
• Dawan of China (3)
• Arenig of China (15), Morocco (1), Sweden (1)
• Ningkuo of China (7)
• Ordovician of Argentina (4), Bolivia (1), China (3), the Czech Republic (1), Morocco (1), New Zealand (10), Norway (1), Spain (1)
• Tremadoc of China (1)
Total: 52 collections including 58 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.