Lost Burro Formation Explained

Lost Burro Formation
Type:	Geologic formation
Age:	Middle to Upper Devonian
Period:	Devonian
Prilithology:	Dolomite
Namedfor:	Lost Burro Gap
Namedby:	McAllister (1952)
Region:	Mojave Desert California
Country:	United States
Coordinates:	36.3443°N -116.5113°W
Underlies:	Tin Mountain Limestone
Overlies:	Hidden Valley Dolomite

The Lost Burro Formation is a Middle to Upper/Late Devonian geologic formation in the Mojave Desert of California in the Western United States.

Geology

The Dolomite formation is exposed in sections of the Darwin Hills, the Santa Rosa Hills, the Talc City Hills, the Inyo Mountains near the Cerro Gordo Mines, the Panamint Range near Towne Pass, and the Argus Range. ^[1]

Fossils

Outcrops of the formation in Death Valley National Park have produced fossils of the placoderm Dunkleosteus terrelli, a small cladodont shark, the crushing tooth of a cochliodont, and the pteraspidid Blieckaspis priscillae.^{[2] [3]}

Notes and References

1. https://books.google.com/books?id=CmlXAAAAMAAJ&dq=Lost+Burro+Formation&pg=RA2-PA12 Google Books: United States Geological Survey Professional Paper - "Geology and ore deposits of Inyo County, California"
2. "Death Valley National Park," Hunt, Santucci, and Kenworthy (2006); page 63.
3. 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.