Extended as an undivided unit into the subsurface of Baca County, Colorado, in the Anadarko basin, east of the Las Animas arch. Overlies Bronson group (undivided) and underlies Lansing group (undivided). Age is Late Pennsylvanian (Missourian). Report includes correlation chart.
Source: Modified from GNU records (USGS DDS-6; Denver GNULEX).
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