After all, the ecosystem of Kap Kobenhavn two million years ago has no analog today.

毕竟，两百万年前的Kap Kobenhavn的生态系统与如今的任何生态系统都不相似。

The age of those reversals helped the researchers determine that Kap Kobenhavn was at least two million years old, but they could not establish a clear upper limit.

这些逆转的年代帮助研究人员确定，Kap Kobenhavn至少有200万岁，但他们无法确定一个明确的上限。