Pterobranchia - Graptoloidea - Dicranograptidae
"The form of cellules in the peculiar group of which G. ramosus may be considered the type.... should be separated from Graptolithus proper for the same reason, forming a sub-generic group, for which I suggest the name of Dicranograptus."
Invalid subtaxa: Cladograpsus Emmons 1855 [replaced name], Diceratograptus
Full reference: J. Hall. 1865. Graptolites of the Quebec Group: Figures and descriptions of Canadian organic remains, Decade II 1-151
Parent taxon: Dicranograptidae according to X. Chen et al. 2016
See also Bulman 1929, Bulman 1970 and Sepkoski 2002
Sister taxa: Dicellograptus, Nemagraptinae
Subtaxa: none
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Arenig of China (1 collection)
• Ordovician of Argentina (5), Australia (2), Canada (6: Northwest Territories, Quebec, Québec), China (29), the Czech Republic (1), Kazakhstan (4), Latvia (1), Lithuania (1), New Zealand (2), Norway (3), the Russian Federation (5), Sweden (3), the United Kingdom (1), United States (23: Alaska, Idaho, Nevada, New York, Oklahoma), Venezuela (1)
Total: 88 collections including 94 occurrences
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.