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Here there were strange fossils called stramatolites.
这里有一种奇怪的化石，叫做叠层石
At the beginning of the mid-Jurassic we have these kind of structures here that represent stramatolites.
中侏罗世初期出现了这种表现为叠层石的结构
Stramatolites, like this, were form in this particular case
像这样的叠层石是在特殊情况下
in lake that occupied most of the central part of Patagonia during the early mid-Jurassic.
于中侏罗世早期形成于占据大部分巴塔哥尼亚中心地区的湖泊中
Stramatolites are formed by a kind of algae.
叠层石由一种藻类建造
They thrive in extreme environments which are both wet and very hot, like the mega-monsoon.
它们的兴盛依靠既湿润又干旱的极端环境，例如超级季风气候。
It was exactly what would have been expected
这与预料的情形一样
because this was before the super-continent had split up.
因为它发生在超大陆分裂之前
I think that the initial conditions of the mid-Jurassic
我认为中侏罗世的初始情况
are in accordance with this idea of dominant mega-monsoonal climatic conditions
和统治级的超级季风气候环境是一样的
dominating, you know, the entire super-continent.
“统治”意味着整个超大陆
And then suddenly everything seemed to change. These are fossilised seed cones.
突然，一切都开始改变，这些是球果化石。
