†Sonninia (Alaskinia) Westermann 1978 (ammonite)
Cephalopoda - Ammonitida - Sonniniidae
Synonym: Sonninia (Alaskoceras) Westermann 1969 [replaced name]
Parent taxon: Sonninia according to M. K. Howarth 2013
See also Westermann 1969
Sister taxa: Sonninia (Euhoploceras), Sonninia (Papilliceras), Sonninia (Poecilomorphus), Sonninia (Sonninia), Sonninia deltafalcata, Waagenia ornata
Subtaxa: Sonninia (Alaskoceras) alaskensis
Ecology: fast-moving nektonic carnivore
Distribution:
• Jurassic of United States (6: Alaska collections)
Total: 6 collections each including a single occurrence