†Microdrillia trina Mansfield 1925 (turrid)
Gastropoda - Neogastropoda - Turridae
Full reference: W. C. Mansfield. 1925. Miocene gastropods and scaphopods from Trinidad, British West Indies. Proceedings of the United States National Museum 66(22):9116-9125
Belongs to Microdrillia according to W. P. Woodring 1970
Sister taxa: Microdrillia comatotropis, Microdrillia cossmanni, Microdrillia crispata, Microdrillia harrisi, Microdrillia ouchitae, Microdrillia propetrina, Microdrillia tersa
Type specimen: USNM 352624, a shell. Its type locality is USGS 9212, which is in a Miocene marine siliciclastic in Trinidad and Tobago.
Ecology: epifaunal carnivore
Average measurements (in mm): shell 6.00 x 2.00