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Re: Troodon Model
On Wed, 13 Jul 1994, Grant Harding wrote:
> Does anyone here know the exact measurements needed to make an accurate,
> lifesize model of a Troodon formosus (Stenonychosaurus inequalis) skeleton?
> Also, what is the Stride length, stride width, and foot lenght of it?
That's quite a tall order (exact measurements)...
Troodon formosus is known from about 20 specimens (very fragmented) and a
number of isolated teeth. The material known include mostly brain cases,
jaw elements, teeth, foot elements, ribs, and some vertebrae. Most of the
postcranial skeleton is poorly preserved (missing: most of vertabral
column, most of forelimb, and shoulder/chest regions). What is preserved
can be compared with other dromaeosaurs. Overall anatomy of Troodon is
based on Saurornithoides material and follows the basic dromaeosaur body
Specimens: length of est. body length of est. hip
skull length femur height
NMC 12340 330 mm ( 3.0 m ) (300 mm) (0.9 m)
AMNH 6516 215 mm ( 2.0 m ) 200 mm (0.6 m)
Troodon formosus seems to have been the largest member of the troodontids,
although most of the remains indicate a gacile creature.
There is a good foot specimen found but I have no current information on
Also, as far as I know, no tracks have been a tributed to Troodon formosus.
I suggest using Dromaeosaurus as a model (you will need to do some scaling),
as for stride length or running speed, look into recorded measurements for
small theropods. I assume they will be very similar.
---John Schneiderman <firstname.lastname@example.org>