Late Middle - early Late Eocene, Berg Lake fossil plant assemblages, Kulthieth Formation (syn "Kushtaka Formation"); Bering River area, north of Berg lake on Carbon Mountain, Chugach Census Area, Alaska, USA
Smithsonian Museum specimen USNM 43251
Date
Source
(1977). "Paleogene floras from the Gulf of Alaska region". United States Geological Survey Professional Paper997: 1–108. DOI:
10.3133/pp997.
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