†Crepicephalus buttsi montanaensis Lochman and Duncan 1944 (trilobite)
Artiopoda - Ptychopariida - Crepicephalidae
Alternative combination: Crepicephalus montanaensis
Synonyms: Crepicephalus buttsi deadwoodensis Hu 1971, Crepicephalus deadwoodensis Hu 1971
Belongs to Crepicephalus buttsi according to J. H. Stitt and P. J. Perfetta 2000
See also Hu 1971 and Wagner 2020
Sister taxa: none
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Cambrian of United States (2: South Dakota collections)
Total: 2 collections each including a single occurrence