testate amoeba fossils reported here appear to confirm morphological stasis in these lineages.
I thank C. S. Hickman, D. DeMars, and H. Schorn for their assistance with the photography for this paper, M. Langer for drafting the locality map, O. R. Anderson, A. R. Knoll, C. J. Bell, and A. Weil for their helpful reviews, and C. J. Cleal and an anonymous reviewer for comments on an earlier version of this paper. I also acknowledge the assistance of C. DeGarmo and J. Tate. This is UCMP contribution number 1653.
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