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Tectonic collision 50 million years ago led to widespread ocean changes（图）
Tectonic collision 50 million years ago widespread ocean changes
2019/11/22
When the landmass that today is the Indian subcontinent slammed into Asia some 50 million years ago, the collision changed the configuration of the continents and altered global climate.Now a team of ...
Well-preserved fossils show ostrich relatives lived in North America 50 million years ago
fossils ostrich relatives North America 50 million years ago
2016/7/15
Exceedingly well-preserved bird fossil specimens dating 50 million years represent a new species that is a previously unknown relative of the modern-day ostrich, according to a new paper co-authored b...
Giant flightless bird wandered the Arctic 50 million years ago
Giant flightless bird Arctic 50 million years ago
2016/2/23
It’s official: There really was a giant, flightless bird with a head the size of a horse’s wandering about in the winter twilight of the high Arctic some 53 million years ago.The confirmation comes fr...