2004 | 2004 in music | 2004 Summer Olympics | United States presidential election, 2004 | Canadian federal election, 2004 | 2004 in film | Battlestar Galactica (2004 TV series) | paleontology | 2004 in baseball | 2004 ATP Tour | 2004 IAAF World Indoor Championships | United States Senate elections, 2004 | United States House of Representatives elections, 2004 | 2004 in television | Eurovision Song Contest 2004 | Australian federal election, 2004 | 2004 Indian Ocean earthquake and tsunami | Crash (2004 film) | Alberta general election, 2004 | 2011 in paleontology | 2004 in sports | Paleontology | 2004 World Series | 2004–05 UEFA Champions League | 2004–05 UEFA Cup | Lost (2004 TV series) | Basketball at the 2004 Summer Olympics | 2010 in paleontology | 2004 World Figure Skating Championships | 2004 Summer Paralympics |
He is a discoverer of a number of extinct animals; see, e.g., 2004 in paleontology or 2006 in paleontology.