| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Pseudorthocerida |
| Family: | Pseudorthoceratidae |
| Genus: | Pseudorthoceras |
| Species: | knoxense |
| Period: | Carboniferous |
| Group: | Conemaugh |
| Formation: | Glenshaw |
| Stratum: | Brush Creek limestone |
Kröger and Mapes (2005) performed a thorough investigation of both Mooreoceras and Pseudorthoceras and found the two to be congenic. Pseudorthoceras has taxonomic priority and is the assigned genera for long orthocone gastropods locally.