De-na-zin Member of Kirtland Formation (NM)
Late Cretaceous (Maastrichtian)
Type area: exposed in NW/4 sec. 19, T. 24 N., R. 11 W., Alamo Mesa East 7.5-min quadrangle, San Juan Co., northwestern NM. Origin of name not stated (Hunt and Lucas, 1992).
San Juan basin
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