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The Test of Time
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Dr. Tom Holtz and Dr. Michael K. Brett-Surman
answer dinosaur questions for the readers of ZoomDinosaurs.com
:



Name all the types of Spinosaurus.
from Ben C., age 8, Chandler, Az., U.S.; July 20, 2001

TOM: A trickier thing than you might think! The following are definitely distinct spinosaurs:
*Spinosaurus aegyptiacus (not "aegypticus", as Alan Grant mis-speaks)
*Baryonyx walkeri
*Suchomimus tenerensis
*Irritator challengeri

Additionally, some more fragmentary remains of spinosaurs have been given names. These *might* be distinct species, or they might belong to one of the above species. These include:
*Spinosaurus maroccanus (might be the same as either Spinosaurus aegyptiacus or Suchomimus tenerensis)
*Angaturama limai (may be the same as Irritator challengeri)
*Cristatusaurus lapparenti (may be the same as Suchomimus tenerensis)


Back to the Holtz and Brett-Surman Questions

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