Sea Gulls / Gull Species

Species

FAMILY LARIDAE

Genus Larus

Genus Rissa

Genus Pagophila

Genus Rhodostethia

Genus Xema

Genus Creagrus

The Laridae are known from fossil evidence since the Early Oligocene, some 30-33 mya. A fossil seagull from the Late Miocene of Cherry County, USA is placed in the prehistoric genus Gaviota; apart from this and the undescribed Early Oligocene fossil, all prehistoric species are at least tentatively assigned to the modern genus Larus, q.v.

Swallow-tailed Gull