Extinct species of gull
Larus perpetuus is an extinct species of gull that lived in North America during the Pliocene.[1]
Etymology
The genus name Larus derives from Ancient Greek, referring to a seabird. The species name perpetuus derives from Latin, meaning constant or forever, referencing the "long fossil history of this species."[1]
Description
Larus perpetuus specimens stem from Sarasota County, Florida (Late Pliocene), and Beaufort County, North Carolina (Early Pliocene).[1] Its bone structure most closely resembles the black-tailed gull (Larus crassirostris), ring-billed gull (Larus delawarensis), and Audouin's gull (Ichthyaetus audouinii; formerly Larus audouinii).[1]
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