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File:Deinonychus foot flexion.png


Description Ventral view of Deinonychus foot (MOR 747) in flexion. D-I is not reversed, but is rotated slightly so that the claw faces laterally into the ‘fist’, as observed in articulated specimens of Velociraptor . Ginglymoid articulation facets of MT-II and III restrict the motion of D-II and III to a parallel dorso-ventral plane, but the distal ball joint of MT-IV allows D-IV to take a variable position, spreading more laterally, or allowing it to reach over the metatarsus, opposing D-I. Not shown at maximum flexion. Scale = 5 cm.
Date 2011
Author Denver W. Fowler1*, Elizabeth A. Freedman1, John B. Scannella1, Robert E. Kambic2


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