Sir Richard Owen (20 July 1804 – 18 December 1892) was an English biologist, comparative anatomist, and paleontologist. Despite being a controversial figure, Owen is generally considered to have been an outstanding naturalist with a remarkable gift for interpreting fossils.

Owen produced a vast array of scientific work, but is probably best remembered today for coining the word Dinosauria (meaning "Terrible Reptile" or "Fearfully Great Reptile"). Owen was an outspoken critic of Charles Darwin's theory of evolution by natural selection. He agreed with Darwin that evolution occurred, but thought it was more complex than outlined in Darwin's On the Origin of Species. Owen's approach to evolution can be seen as having anticipated the issues that have gained greater attention with the recent emergence of evolutionary developmental biology.

More Info: en.wikipedia.org