Pterobranchia - Graptoloidea - Anisograptidae
Alternative combinations: Dictyonema flabelliforme sociale, Dictyonema flabelliformis sociale, Dictyonema sociale, Graptopora (Fenestella) sociale, Rhabdinopora socialis
Belongs to Rhabdinopora flabelliformis according to W.-H. Wang and T. Servais 2015
See also Bulman 1927, Bulman 1954, Salter 1858, Salter 1865 and Wagner 2020
Sister taxa: Dictyonema flabelliforme intermedium, Rhabdinopora flabelliformis anglica, Rhabdinopora flabelliformis flabelliformis, Rhabdinopora flabelliformis multithecata, Rhabdinopora flabelliformis norvegica, Rhabdinopora flabelliformis parabola
Ecology: passively mobile planktonic suspension feeder
Distribution:
• Ordovician of Argentina (1 collection), Estonia (2), Norway (5), the United Kingdom (1)
Total: 9 collections each including a single occurrence