William R. Hammer

Dr. William Roy Hammer is a professor at Augustana College in Rock Island, Illinois. He is credited with the discovery of the Cryolophosaurus in 1991.[1][2][3] He is originally from Detroit, Michigan.

References

  1. ↑ Farlow, James Orville; Walters, Robert H. The Complete Dinosaur. Indiana University Press. p. 50. ISBN 978-0-253-21313-6.
  2. ↑ Debus, Allen G.. Dinosaur Memories: Dino-trekking for Beasts of Thunder, Fantastic Saurians, 'Paleo-people,' 'Dinosaurabilia,' and other 'Prehistoria'. Authors Choice Press. p. 492. ISBN 0-595-22988-3.
  3. ↑ Rubin, Jeff. Lonely Planet Antarctica (Lonely Planet Antarctica). Lonely Planet Publications. p. 247. ISBN 1-74059-094-5.