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最近,科学家在位于昆士兰西北部著名的里弗斯利世界遗产区凭借一颗独特的牙齿发现了一种新的鸭嘴兽,它叫做Obdurodon tharalkooschild。如今,里弗斯利的沉积化石都是以放射性定年法判断物种年份,因此初步估计这种巨型鸭嘴兽距今500万年至1500万年。研究组的带头人瑞贝卡·皮恩博士说道:“单孔目动物(鸭嘴兽和针鼹鼠)是南部大陆特有的古代哺乳动物,因此发现一种新型的鸭嘴兽对于更好地理解哺乳动物提供了重要的帮助,尽管它的信息还不够完整。”
Recently, scientists discovered a new platypus with a unique tooth in the famous Riverside World Heritage Site in northwestern Queensland called Obdurodon tharalkooschild. Nowadays, all the sedimentary fossils of Riversley use radioactive dating to determine the species year, so a preliminary estimate of this giant platypus is between 5 million and 15 million years old. Dr. Rebecca Pien, leader of the study group, said: “The uniformed animals (platypuses and mole rats) are ancient mammals unique to the southern mainland, and therefore found a new type of platypus for a better understanding of mammals Provides important help, though its information is not complete enough. ”