Joseph Leidy

American anatomist and paleontologist (1823 – 1891).

Born September 9th, 1823 in Philadelphia.

Died April 30th, 1891 at 67 years old in Philadelphia.

Occupations
anatomist, botanical collector, botanist, paleontologist, parasitologist, scientific collector, university teacher, zoologist
Wikipedia

The fear of death is the beginning of slavery. Robert Anton Wilson