Cepphus grylle Linnaeus 1758 (black guillemot)
PaleoDB taxon number: 369343
Alternative combination: Alca grylle
Full reference: C. Linnaeus. 1758. Systema Naturae per Regna Tria Naturae, Secundum Classes, Ordines, Genera, Species, cum Characteribus, Differentiis, Synonymis, Locis. Editio Decima 1:1-824
Belongs to Cepphus according to J. F. Clements et al. 2017
Sister taxa: Cepphus carbo, Cepphus columba, Cepphus olsoni