Larus elmoreiLarus elmorei is an extinct species of gull that lived during the mid-Pliocene.EtymologyThe genus name Larus derives from Ancient Greek, referring to a seabird. The species name elmorei derives from the last name of George C. Elmore, Mining Superintendent of the American Agricultural Chemical Company in Florida, who collected the type specimen.DescriptionLarus elmorei specimens stem from the Bone Valley Formation in Polk County, Florida. Larus elmorei is most similar in size to the California gull, being slightly smaller.