†Cloacaspis ceryx anataphra Fortey 1974 (trilobite)
Artiopoda - Olenida - Olenidae
Alternative combinations: Balnibarbi ceryx anataphra, Cloacaspis anataphra
Full reference: R. A. Fortey. 1974. The Ordovician trilobites of Spitsbergen. I. Olenidae. Norsk Polarinstitutt Skrifter 160:1-129
Belongs to Cloacaspis ceryx according to R. A. Fortey et al. 2024
See also Fortey 1974, Hopkins 2019 and Wagner 2020
Sister taxon: Cloacaspis ceryx ceryx
Type specimen: PMO NF 651, a cephalon/head (cranidium)
Ecology: fast-moving low-level epifaunal carnivore
Distribution:
• Ordovician of Norway (3 collections), United States (1: California)
Total: 4 collections each including a single occurrence