†Menuites portlocki complexus Hall and Meek 1855 (ammonite)
Cephalopoda - Ammonitida - Pachydiscidae
Alternative combination: Ammonites complexus
Full reference: J. Hall and F. B. Meek. 1855. Descriptions of New Species of Fossils, from the Cretaceous Formations of Nebraska, with Observations upon Baculites ovatus and B. compressus, and the Progressive Development of the Septa in Baculites, Ammonites, and Scaphites. Memoirs of the American Academy of Arts and Sciences 5(2):379-411
Belongs to Menuites portlocki according to W. J. Kennedy and W.A Cobban 1997
Sister taxa: none
Type specimen: AMNH 95311, a shell
Ecology: fast-moving nektonic carnivore
Distribution: found only at Great Bend of the Missouri, division No. 4 (Cretaceous of South Dakota)