'Arkansaurus' has been described as a nomen dubium and the name is rejected.
It first appeared in a newspaper and later picked up by Sattler and Braden,
which just prorogated the name. The name should not be used anymore.
And finally this is the paper that described it.
Hunt, R., 2003, An Early Cretaceous theropod foot from southwestern Arkansas: Proceedings journal of the 2003 Arkansas Undergraduate Research Conference, p. 87-103.
Thanks for the information, it will be put to good use, Tommy Bradley :-)
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