Hannold Hill Formation
The Hannold Hill Formation is an Eocene geologic unit in the western United States. It preserves the fossilized remains of the ray Myliobatis and gar.[1]
Footnotes
- ↑ "Big Bend National Park," Hunt, Santucci, and Kenworthy (2006); page 66.
References
- Hunt, ReBecca K., Vincent L. Santucci and Jason Kenworthy. 2006. "A preliminary inventory of fossil fish from National Park Service units." in S.G. Lucas, J.A. Spielmann, P.M. Hester, J.P. Kenworthy, and V.L. Santucci (ed.s), Fossils from Federal Lands. New Mexico Museum of Natural History and Science Bulletin 34, pp. 63–69.