Plecia pealei (Fly) and Ailanthus lesquereuxi (Seed)
A dark brown oblong seed fossil partially covers the abdomen and wing of a dark brown fly fossil on tan stone.
The most common insect (March fly) and the most common plant (tree of heaven seed) fossils from Fossil Lake juxtaposed. Library catalog number FOBU10729.
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Fossil Butte National Monument, Code: FOBU
Fossil Butte National Monument, Lincoln County, Wyoming Latitude: 41.8563003540039, Longitude: -110.762001037598