Parent taxon: Graptoloidea according to J. J., Jr. Sepkoski 2002
Sister taxa: Apiograptus, Arienigraptus, Arnheimograptus, Axonophora, Bergstroemograptus, Bryograptidae, Crinitograptus, Dichograptacea, Dichograptina, 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, Semiplectograptus, Sinograpta, Sinograptina, Sinoreteograptus, Stromatograptus, Uncinatograptus, Urbanekograptus, Virgellina
Subtaxa: Rivagraptus bellulus Rivagraptus kayi Rivagraptus supernus
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Silurian of Canada (3: Nunavut collections), China (1)
• Ordovician of Canada (2: Nunavut)
Total: 6 collections including 7 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.