1962  Honderich, p.66: Univ. Arkansas Dpt. Geology fossil
           locality 91-W1, S.W.1/4, N.E.1/4, Sec. 16 T14N, R30W,
           on the east side of U.S. Highway 71, ENE of Woolsey,
           12 1/2 mi. S of Fayetteville.