搜索结果: 1-1 共查到“古生物学 oldest-known”相关记录1条 . 查询时间(0.083 秒)
Scientists find oldest-known fossilized digestive tract — 550 million years（图）
Scientists oldest-known fossilized digestive tract 550 million years
<
2020/1/19
A 550-million-year-old fossilized digestive tract found in the Nevada desert could be a key to understanding the early history of animals on Earth.More than a half-billion years ago, life on Earth con...