无码少妇一区二区三区免费,妓院一钑片免看黄大片,国语自产视频在线,亚洲AV成人无码国产一区二区,激情久久综合精品久久人妻,日韩免费毛片,综合成人亚洲网友偷自拍,国内自拍视频在线观看,欧美熟妇性xxxx交潮喷,国产成人精品一区二免费网站

Scientists find snail in dinosaur-era amber

Source: Xinhua| 2018-10-12 15:32:10|Editor: Li Xia
Video PlayerClose

BEIJING, Oct. 12 (Xinhua) -- An international team of paleontologists announced Friday in Beijing their discovery of a fossilized snail in a piece of amber dating back around 100 million years.

While most of snail fossils retain only the shell, the new discovery is the oldest example of soft tissues, such as the tentacles, of snail preserved in amber, according to Xing Lida, an assistant professor at the China University of Geoscience and leader of the team.

The snail in amber was found at Hukawng Valley in northern Myanmar, an area rich in amber fossil discoveries. Amber can contain different kinds of soft tissues, providing valuable palaeontological information.

"The pair of tentacles and the eyes of the snail have been preserved intact in the amber," said Xing.

The research was jointly conducted by scientists from China, Britain, Australia, and Canada. The findings have been published online on the latest issue of the journal Cretaceous Research.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001375280921
国产va免费精品| 国产精品天干天干综合网| 久久综合丁香激情久久| 婷婷四虎东京热无码群交双飞视频 | 成人免费午夜无码视频在线播放| 久久综合激激的五月天| 美女不带套日出白浆免费视频| 精品久久精品午夜精品久久| 欧美日韩精品在线播放| 国产超碰无码最新上传| 另类zozozozozo交| 偷窥少妇久久久久久久久| 少妇高潮喷水惨叫久久久久电影| 日韩无套内射高潮| 久久久婷婷综合五月天| 国产福利微视频一区二区| 国产精品V日韩精品| 极品少妇被后入内射视| 中日韩精品视频在线观看 | 我的公把我弄高潮了视频| 成人免费午夜无码视频在线播放| 免费国产高清在线精品一区| 末发育娇小性色xxxxx| 日韩成视频在线精品| 午夜精品一区二区三区在线观看| 丝袜美腿丝袜亚洲综合| 欧美牲交a欧美牲交aⅴ一| 新妺妺窝人体色www_聚色窝| 国产日韩成人内射视频| 国产a级三级三级三级| 男人添女人下部高潮视频| 日本中文字幕一区二区在线观看| 久久综合亚洲色一区二区三区| 国产精品美女久久久久网站浪潮 | 亚洲人成网线在线播放VA| 久久露脸国产精品| 亚洲日本丝袜丝袜办公室| 国产女人在线观看| 色偷偷女人的天堂亚洲网| 亚洲午夜综合网| 国产成人午夜精品一区二区三区|