Chroicocephalus ridibundus Linnaeus 1758 (black-headed gull)
PaleoDB taxon number: 367998
Alternative combination: Larus ridibundus
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 Chroicocephalus according to J. F. Clements et al. 2017
Sister taxa: Chroicocephalus bulleri, Chroicocephalus cirrocephalus, Chroicocephalus hartlaubii, Chroicocephalus novaehollandiae, Chroicocephalus philadelphia
Type specimen: 1