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The material is loosely described as a foot from a site near
Plaza Huincul, dated about 90 Ma. From this a head-to-tail length of
8 feet (2.5 m) and weight of 66 lbs (30 kg) are extrapolated.
This is probably the arctometatarsalian form, probably troodontid,
form the same site as Megaraptor.
If so, it is smaller than Megaraptor
and has a true pinched metatarsus.
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