The site has been updated with an "In Memoriam" post that reads in part:
While the world knew him as a great story teller 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.
Through his books, Michael Crichton served as an inspiration to students of all ages, challenged scientists in many fields, and illuminated the mysteries of the world in a way we could all understand.
He will be profoundly missed by those whose lives he touched, but he leaves behind the greatest gifts of a thirst for knowledge, the desire to understand, and the wisdom to use our minds to better our world.
Crichton wrote more than 20 bestselling books of fiction and non-fiction — most famously Jurassic Park, which launched a similarly successful movie franchise. He also wrote the screenplays for movies including Twister and Rising Sun. In addition to creating ER, he wrote three episodes in the series' first season (including the pilot) and has been listed as a producer on every single episode.
His family is planning to hold a private memorial service.