New Discovery Reveals Unexpected Twist in Alaskan Fossil Mystery
During an expedition in 1951 through the Alaskan interior, archaeologist Otto Geist stumbled upon what he believed to be the fossilized backbones of woolly mammoths. The bones, two epiphyseal plates from a mammalian spine, were initially thought to belong to the extinct megafauna species known as Mammuthus primigenius.
Geist brought the bones to the University of Alaska’s Museum of the North, where they were archived for over 70 years. Thanks to the museum’s ‘Adopt-a-Mammoth’ program, the fossils were recently radiocarbon-dated, leading to a surprising revelation.
The carbon isotopes in the bones indicated an age of around 2,000 to 3,000 years, much younger than the expected age of woolly mammoths, which are believed to have gone extinct around 13,000 years ago. This finding raised questions about the true identity of the bones.
Further analysis revealed that the bones contained higher levels of nitrogen-15 and carbon-13 isotopes commonly found in marine creatures, suggesting a marine origin rather than a terrestrial one. Mitochondrial DNA analysis confirmed that the bones actually belonged to Northern Pacific Right whales and Common Minke whales.
The discovery of whale bones in interior Alaska, far from the nearest coastline, puzzled researchers. Possible explanations include ancient inland whale incursions, human transportation of the bones, or a mix-up at the museum where the specimens were housed.
This unexpected twist in the Alaskan fossil mystery highlights the interconnectedness of marine and terrestrial ecosystems and the importance of thorough scientific investigation. While some questions remain unanswered, this research has definitively ruled out the bones as belonging to woolly mammoths.
The study detailing this fascinating discovery was published in the Journal of Quaternary Science.
