Occurs in two outcrops from Herendeen Bay to Port Moller, Alaska Peninsula, southwestern AK. Consists of arenaceous limestone of light-gray color, locally cross-bedded and fossiliferous. Is 800 ft thick. Conformably overlies Staniukovich shale (new); underlies Chignik formation (new). Invertebrate fauna identified by T.W. Stanton (list and localities given) indicate age is Early Cretaceous.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
Herendeen limestone contains BUCHIA CRASSICOLLIS and is of Valanginian age (Imlay and Reeside, 1954).
Source: GNU records (USGS DDS-6; Menlo GNULEX).
Unit everywhere redescribed as Herendeen Formation based on its lithic diversity. Reference section designated in sec. 14, T. 50 S., R. 73 W., Port Moller D-2 quadrangle (scale 1:63,360) where unit is 270 m thick. Age is given as Early Cretaceous.
Source: GNU records (USGS DDS-6; Menlo GNULEX).
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