Cast & crew
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Walter CronkiteSelf - Host
Robert BakkerSelf - University of ColoradoDavid NormanSelf - Cambridge UniversityJack HornerSelf - Museum of the RockiesNeil ShubinSelf - University of Pennsylvania
Peter DodsonSelf - University of PennsylvaniaJohn OstromSelf - Yale University
Stephen Jay GouldSelf - Harvard UniversityPhilip CurrieSelf - Royal Tyrrell Museum
Ken CarpenterSelf - Denver Museum of Natural HistoryPaul OlsenSelf - Columbia University
Peter L. LarsonSelf - Black Hills Institute