- Author:
- Downie,C.
- Year:
- 1969
- Title:
- Palynology of the Chuaria Shales of the Grand Canyon.
- Reference:
- Downie,C. (1969) Palynology of the Chuaria Shales of the Grand Canyon. Four Corners Geological Society,5th Field Conference. Geology and Natural History of the Canyon. P. 121- 122
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Trachyoligotriletes | Trachyoligotriletes planus | Arizona | Late Precambrian | Early Cambrian |