Full reference: C. O. Dunbar. 1953. A giant Permian fusuline from Sonora. Permian fauna at El Antimonio, western Sonora, Mexico. Smithsonian Miscellaneous Collections 119(2):14-19
Belongs to Parafusulina according to C. O. Dunbar 1953
Sister taxa: Parafusulina (Parafusulina), Parafusulina californica, Parafusulina cerrogordoensis, Parafusulina complexa, Parafusulina fusoidea, Parafusulina gifuensis, Parafusulina guatemalaensis, Parafusulina halli, Parafusulina japonica, Parafusulina juncea, Parafusulina kaerimizensis, Parafusulina kinosakii, Parafusulina klamathensis, Parafusulina kummeli, Parafusulina lata, Parafusulina maleyi, Parafusulina mccloudensis, Parafusulina multiseptata, Parafusulina nakamigawai, Parafusulina nosonensis, Parafusulina owensensis, Parafusulina parakinosakii, Parafusulina peruana, Parafusulina potterensis, Parafusulina sangobensis, Parafusulina sapperi, Parafusulina shimotsukensis, Parafusulina sullivanensis, Parafusulina tochigiensis, Parafusulina tomeganensis, Parafusulina tomowoozawai, Parafusulina ubehebensis, Parafusulina virga, Parafusulina yabei, Parafusulina yoshiakiozawai
Type specimen: USNM 123301, a test. Its type locality is USNM806j, Cerros de los Monos, El Antimonio, Sonora, which is in a Wordian marine limestone in the Antimonio Formation of Mexico.
Ecology: stationary semi-infaunal omnivore
Average measurements (in mm): test 47.1 x 4.4