†Pseudogrammoceras aratum Buckman 1890 (ammonite)
Cephalopoda - Ammonitida - Hildoceratidae
Belongs to Pseudogrammoceras according to Buckman 1890
Sister taxa: Pseudogrammoceras bingmanni, Pseudogrammoceras differens, Pseudogrammoceras doerntense, Pseudogrammoceras subfallaciosum, Pseudogrammoceras subregale
Ecology: fast-moving nektonic carnivore