†Geragnostus (Novoagnostus) Nielsen 1997 (artiopod)
Artiopoda - Agnostida - Metagnostidae
Parent taxon: Geragnostus according to R. A. Fortey et al. 2024
See also Zhou et al. 2014
Sister taxa: Geragnostus (Geragnostella), Geragnostus (Geragnostus), Geragnostus (Microagnostus), Geragnostus boutouryensis, Geragnostus callaveiformis, Geragnostus crassus, Geragnostus fabius, Geragnostus occitanus
Subtaxa: Geragnostus (Novoagnostus) contractus Geragnostus (Novoagnostus) longicollis
Ecology: slow-moving epifaunal detritivore
Distribution:
• Chazyan of Canada (2: Newfoundland and Labrador collections)
• Whiterockian of Canada (3: Newfoundland and Labrador)
• Ordovician of Canada (1: Northwest Territories), China (4), United States (1: California)
Total: 11 collections each including a single occurrence