A Late Pliocene occurrence of the Thick-billed Murre (Alcidae: Uria lomvia) on St. George Island, Pribilofs, Alaska
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- Olson, S.L. Paleontol. J. (2013) 47: 1365. doi:10.1134/S0031030113110129
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An associated partial skeleton from the Late Pliocene (3.0–2.6 million years) of St. George Island, Pribilofs, Alaska, is identified as the modern Thick-billed Murre (Uria lomvia). This is the oldest occurrence of either modern species of Uria and probably the oldest Cenozoic bird yet known from Alaska. A split between the two modern species of >3 million years is in accordance with divergence times derived from DNA sequences.