ammonites
Cornuella Stinchcomb 1986 (mollusk)

Tergomya - Kiringellida - Hypseloconidae

Full reference: B. L. Stinchcomb. 1986. New Monoplacophora (Mollusca) from Late Cambrian and Early Ordovician of Missouri. Journal of Paleontology 60(3):606-626

Parent taxon: Hypseloconidae according to B. L. Stinchcomb 1986

Sister taxa: Cambrioconus, Gasconadeoconus, Gayneoconus, Knightoconus, Ozarkoconus, Paraceratoconus, Proteroconus, Pygmaeoconus, Shelbyoceras, Yochelsonella

Subtaxa: Cornuella parva

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Ecology: slow-moving low-level epifaunal grazer