Plagiobrissus (Rhabdobrissus) Cotteau 1889 (heart urchin)
Echinoidea - Spatangoida - Brissidae
Alternative spelling: Rhabdobrissus
Synonym: Mortensenaster
Parent taxon: Plagiobrissus according to A. G. Fischer 1966
See also Sepkoski 2002
Sister taxa: Eupatagus (Plagiobrissus) curvus, Eupatagus (Plagiobrissus) dixie, Eupatagus (Plagiobrissus) gardnerae, Eupatagus (Plagiobrissus) holmesii, Plagiobrissus costaricensis, Plagiobrissus grandis, Plagiobrissus loveni, Plagiobrissus malavassii, Plagiobrissus robustus
Subtaxa: none
Ecology: slow-moving shallow infaunal deposit feeder-detritivore
Distribution: there are no occurrences of Plagiobrissus (Rhabdobrissus) in the database