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.
