Recent scientific releases indicate that the first prehistoric beaver lived in Oregon, newly-found fossil confirms. Biologists have estimated that the first prehistoric beaver came to North America from Asia approximately 30 million years ago.
The recent floods affecting America have had good parts, as well. Waters have unearthed the fossil of what appears to be the first prehistoric beaver. Surprisingly, the bone structure appeared near the John Day Fossil Beds National Monument, so it was immediately taken within the facility and subjected to many analyses.
Many relevant findings have been inferred from the analyses of the beaver bone structure. According to scientists, the most important aspect is that the beaver belongs to the modern and not to the ancient species of the said animals.
The name of the species was identified to be Microtheriomys brevirhinus and it is said that it appeared on the territory of the North American around 30 million years ago. Although the beaver was half the size of the species we have seen today, it was still capable of crossing the Bering land bridge and settle on the U.S. territory.
The bone structure that was recently identified by scientists lived 7 million years ago. No other details are known in relation to the eating habits or the behavior of the brevirhinus, but it is believed that it has co-existed with dinosaurs, tree-toed horses, two-horned rhinos and other such rare species during the Oligocene period.
The recent find helps scientists enrich the existing classification of beaver species and hopefully, enable them to make new interesting discoveries in relation to the evolution of the castorid family. Many more beaver species are said to have lived in the region as scientists have unearthed approximately 100 different bone fossils.
The recently found bone fossils and the analyses of other 20 types of rodent species will be presented in the upcoming number of the Annals of Carnegie Museum.
Image Source: The Allium
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