Indohyus. One of my drawings from 2007.
At that time I drew a lot of animal portraits. The indohyus was an ancestor of modern whales. It was a racoon-sized, mouse-deer-like, even-toed ungulate and probably lived partially aquatic. Recently, another link between whales and land mammals has been discovered. While indohyus lived in India about 48 million years ago, the newly discovered species peregocetus was found in approximately 43 million years old sediments in Peru. It already had a length of 13 feet and was very well adapted to life in the water. But still had hooves.