A new type of duck-billed dinosaur has been identified on one of Japan’s southern islands.
In 2004, an amatuer fossil hunter found the preserved lower jaw, teeth, neck vertebrae, shoulder bone and tail vertebra in an approximately 72-million-year-old layer of sediment on Japan’s Awaji island.
The fossil was given to Japan’s Museum of Nature and Human Activities where it was stored before being studied by an international team of researchers from Southern Methodist University (SMU) and Japan.
In a study recently published in Scientific Reports, researchers now say the specimen is that of a new genus and species of hadrosaur, or duck-billed dinosaur, they’ve dubbed Yamatosaurus izanagii.
The plant-eating hadrosaurs roamed the Earth during the Late Cretaceous period more than 65 million years ago and are the most commonly discovered type of dinosaur. Fossils have been found in North America, Europe, Africa and Asia.
Researchers say the find is important as it provides new insight into hadrosaur migration, evolutionary changes and the prevalence of dinosaurs in Japan.
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