Figure 6: “Baropus Hainesi” (Carman, 1927) (A, C) and “Megabaropus Hainesi” (Baird, 1952) (B, D) From the Late Carboniferous Monongahela Group (Haine’s Farm Locality, Ohio, USA).

doi 10.7717/peerj.4346/fig-6