Alexander von Keyserling
![Portrait taken by [[Georg Friedrich Schlater]], before 1870](https://upload.wikimedia.org/wikipedia/commons/b/bb/AlexanderGrafKeyserling.jpg)
Alexander Friedrich Michael Lebrecht Nikolaus Arthur Graf von Keyserling (15 August 1815 – 8 May 1891) was a Baltic German geologist and paleontologist from the Keyserlingk family of Baltic German nobility.
Provided by Wikipedia
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