Possible eukaryotic algal filaments from the late Proterozoic Chuar Group, Grand Canyon, Arizona

Tulane Univ., Dep. Geol., New Orleans, LA, United States
Texaco U.S.A., United States

Carbonaceous filaments of possible eukaryotic algal affinity have been detected in ca. 850-m.y.-old mudstones near the top of the Awatubi Member of the Kwagunt Formation, Chuar Group, eastern Grand Canyon, Arizona. These filaments range from 40-130 mu m wide and are densely concentrated within a 0.1-mm-thick lamina.--Journal abstract.

This record provided courtesy of AGI/GeoRef.

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