日韩午夜精品视频,欧美私密网站,国产一区二区三区四区,国产主播一区二区三区四区

 
Archaeological Discoveries
in 2001
Archaeological Discoveries
in 2000
Top Ten Archaeological Finds
for 1999
Archaeological Discoveries
in 1999
Homepage
 

The Earliest Fossil of Osteichthyes

????Chinese scientists have confirmed that the discovery of the fossil of an osteichthyes is so far the earliest of its kind, and marks a breakthrough in the study of the origin and evolution of early vertebrates.
???? Specialists point out that this discovery has offered a key to the origin of osteichthyes, thereby providing a new approach to understanding the evolution of vertebrates. Including the osteichthyes class of amphibious animals, reptiles, birds, mammals, and even human beings, vertebrates comprise about 50,000 existing species.
???? The paleichthyolite discovered in China is the earliest of the known osteichthyes. This species of osteichthyes may be our own ancestor.

 
主站蜘蛛池模板: 竹山县| 霍山县| 定襄县| 山东省| 新巴尔虎右旗| 安吉县| 民和| 金塔县| 科尔| 长岛县| 新蔡县| 大埔县| 杭锦旗| 玉环县| 沿河| 密云县| SHOW| 泸水县| 常州市| 嵊州市| 清水县| 依安县| 乐业县| 台江县| 普格县| 建昌县| 崇信县| 清苑县| 广昌县| 德江县| 湘潭市| 阳高县| 将乐县| 凤凰县| 邮箱| 依兰县| 安图县| 阜南县| 旺苍县| 伽师县| 永和县|