图 书 馆
古生代生命Life in the Palaeozoic |
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| 课程网址: | http://openlearn.open.ac.uk/course/view.php?id=2659 |
| 主讲教师: | The Open University |
| 开课单位: | 英国开放大学 |
| 开课时间: | 信息不详。欢迎您在右侧留言补充。 |
| 课程语种: | 英语 |
| 中文简介: |  |
| 课程简介: | This is a free, online textbook/course that starts "by looking at the Cambrian explosion, when many forms of animal life first appeared about 545 million years ago. Then we move on to study creatures living in the Ordovician seas, including the extinct trilobites. Next, we'll investigate the invasion of land by plants and invertebrates that occurred in the Silurian Period, and look at life in Silurian seas. You'll also learn about the Devonian Period, when vertebrates first moved onto land. The unit finishes with a brief outline of vertebrate evolution.״ |
| 关 键 词: | 奥陶纪海洋; 三叶虫; 泥盆纪时期; 脊椎动物; 志留纪 |
| 课程来源: | 信息不详。欢迎您在右侧留言补充。 |
| 最后编审: | 2018-12-09：lyt |
| 阅读次数: | 9 |