Author Michael Crichton, best known as the author of Jurassic Park and the creator of NBC’s long-running medical drama ER, has died of cancer. He was 66.

In a statement to Entertainment Tonight, the Crichton Family describes the innovative writer as a devoted family man and compassionate friend.

“While the world knew him as a great storyteller that challenged our preconceived notions about the world around us — and entertained us all while doing so — his wife Sherri, daughter Taylor, family and friends knew Michael Crichton as a devoted husband, loving father and generous friend who inspired each of us to strive to see the wonders of our world through new eyes.”

“He did this with a wry sense of humor that those who were privileged to know him personally will never forget.”