Alternative combination: Larus pristinus
Full reference: R. W. Shufeldt. 1915. Fossil birds in the Marsh Collection of Yale University. Transactions of the Connecticut Academy of Arts and Sciences 19:1-110
Type specimen: YPM 935, a set of vertebrae. Its type locality is Lower Willow Creek, which is in an Oligocene terrestrial horizon in Oregon.
Ecology: ground dwelling carnivore
Distribution: found only at Lower Willow Creek
Specimen images are retrieved through the ePANDDA API.
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