Geologic formation in the Mojave Desert near Barstow, San Bernardino County, California
Barstow Formation
Stratigraphic range: Early to Middle Miocene (Barstovian) ~19.3–13.4 Ma
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S
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Barstow Formation exposed in Owl Canyon near Barstow, California.
Type
Sedimentary
Lithology
Primary
limestone, shale, siltstone, sandstone, tuff
Other
conglomerate
Location
Region
Mojave Desert, California
Country
United States
Extent
Northern San Bernardino County, Southeastern California
Type section
Named for
Barstow, California
Named by
Hershey (1902)
The Barstow Formation is a series of limestones, conglomerates, sandstones, siltstones and shales exposed in the Mojave Desert near Barstow in San Bernardino County, California.[1][2]
It is of the early to middle Miocene epoch, (19.3 - 13.4 million years ago) in age, in the Neogene Period.[3] It lends its name to the Barstovian North American land mammal age (NALMA).
The sediments are fluvial and lacustrine in origin except for nine layers of rhyolitic tuff.[3] It is well known for its abundant vertebrate fossils including bones, teeth and footprints.[4] The formation is also renowned for the fossiliferous concretions in its upper member, which contain three-dimensionally preserved arthropods.
^Dibblee, T.W., Jr. (1967). Areal Geology of the Western Mojave Desert, California. Geological Survey Professional Paper no. 522. United States Government Printing Office, Washington D.C.
^Dibblee, T.W., Jr. (1968). Geology of the Fremont Peak and Opal Mountain Quadrangles, California. California Division of Mines and Geology, San Francisco.
^ abWoodburne, M.O., Tedford, R.H., Swisher III, C.C. (1990). Lithostratigraphy, biostratigraphy, and geochronology of the Barstow Formation, Mojave Desert, southern California: Geological Society of America Bulletin, Vol. 102, p. 459-477.
^Lindsay, E.H. (1972). Small Mammal Fossils from the Barstow Formation, California. University of California Publications in Geological Sciences, Vol. 93. University of California Press, Berkeley.
The BarstowFormation is a series of limestones, conglomerates, sandstones, siltstones and shales exposed in the Mojave Desert near Barstow in San Bernardino...
and rhyolites. It was described in 1969 from an occurrence in the BarstowFormation, San Bernardino County, California. Sodium levels in clinoptilolite...
Rainbow Basin is a geological formation in the Calico Peaks range, located approximately 8 miles (13 km) north of Barstow in the Mojave Desert in San Bernardino...
Davis, Texas showing a syncline Rainbow Basin Syncline in the BarstowFormation near Barstow, California Syncline in the lower parking lot of Calico Ghost...
Depot Beach, New South Wales Rainbow Basin Syncline in the BarstowFormation near Barstow, California. Folded strata. Outcrop of Upper Ordovician limestone...
invertebrate fossils of both Atlantic and Pacific affinity in La Cascada Formation. Connection would have occurred through narrow epicontinental seaways...
"Partial skull of Zygolophodon (Mammalia, Proboscidea) from the BarstowFormation of California". Journal of Vertebrate Paleontology. 31 (6): 1392–1396...
species is recognized, Calicovatellus petrodytes. It was found in the BarstowFormation in southern California and dates to the Miocene. "†Calicovatellus...
locality is Barstow, which is in a Barstovian terrestrial horizon in the BarstowFormation of California. Merriamoceros was originally named as a subspecies...
which inhabited Lake Barstow during the middle Miocene. It is the most common beetle found in the concretions from the BarstowFormation. The specimens are...
(Lamaichnum alfi Sarjeant and Reynolds, 1999; convex hyporelief) from the BarstowFormation (Miocene) of Rainbow Basin, California. Saurichnites intermedius A...
Scaphohippus, a new genus of horse (Mammalia: Equidae) from the BarstowFormation of California. Journal of Mammalian Evolution 13. 37–61. . Woodburne...
ago). Its fecal material is abundant in the concretions from the BarstowFormation. A limited number of whole specimens have been found, and they represent...
the ichnotaxon Hirpexipes alfi were discovered in the Californian BarstowFormation, and match the feet of A. ingens. They showcase that the animal was...
million years. Sites and age of some specimens: Hemicyon Quarry, BarstowFormation, San Bernardino County, California ~13.7—11.6 Ma. Ruby River Basin...
Juntura Formation and California's BarstowFormation and the Sharktooth Hill Bonebed. Further inland fossils were found in the Rosebud Formation of South...
John Merriam. The genus was described from specimens found in the BarstowFormation of southeast California. Specimens of Scaphohippus were medium-sized...
Arikareean Rosebud Formation of South Dakota. Later fossil discoveries also suggested its presence in the late Miocene BarstowFormation of San Bernardino...
Hemicyon Quarry Site, BarstowFormation, San Bernardino County, California ~14.0 Ma. Adam Risley Ranch Site, Goliad Formation, Donley County, Texas ~12—11...
[unpublished]. TAYLOR, D. W., 1954c [June], Nonmarine molluscs from BarstowFormation of southern California. United States Geological Survey, Professional...
2008, Gerrothorax pulcherrimus from the Upper Triassic Fleming Fjord Formation of East Greenland and a reassessment of head lifting in temnospondyl feeding:...
Retrieved January 15, 2021. Fraknoi et al. 2023, pp. 851–856, 907–915. Barstow, M. A. (2005). "Elliptical Galaxies". Leicester University Physics Department...
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