Mount Blanco facts for kids
Quick facts for kids Mount Blanco |
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Mount Blanco viewed from above
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| Highest point | |
| Elevation | 3,074 ft (937 m) |
| Geography | |
 Mount Blanco
Location in Texas
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| Geology | |
| Age of rock | Blancan, Quaternary |
| Mountain type | Butte |
Mount Blanco is a small white hill — an erosional remnant — located on the eastern border of the Llano Estacado within Blanco Canyon in Crosby County, Texas. With Blanco Canyon, it is the type locality of the Blanco Formation of Texas and Kansas, as well as the Blancan fauna, which occurs throughout North America.
Contents
Geology
The term "Blanco Canyon beds", later shortened to "Blanco beds", was first applied to this formation in 1890 by William F. Cummins of the Geological Survey of Texas. The Blanco beds are considered to be of lacustrine origin – deposited in a Pleistocene lake basin set in the Ogallala formation of Pliocene age which underlies the upper surface sediments of the Llano Estacado. The thickness of the Blanco beds varies from around 22 to 26 m (72 to 85 ft) thick at the most. The formation mainly consists of light-gray fine-grained mudstone, sandstone, and some conglomerate. These light-colored sediments contrast sharply with the rust-colored sediments of the Ogallala Formation.
Fossil Fauna
All fossil fauna from Mount Blanco modified from Dalquest (1975) unless otherwise noted.
- Class Mammalia
- Order Perissodactyla
- Family Equidae
- †Equus cumminsi
- †Equus simplicidens
- †Nannippus peninsulatus
- Family Equidae
- Order Artiodactyla
- Family Antilocapridae
- Family Camelidae
- †Blancocamelus meadei
- †Camelops traviswhitei
- †Canimartes cumminsi
- †Titanotylopus spatulus
- Family Cervidae
- †Odocoileus brachyodontus
- Family Tayassuidae
- †Platygonus biccalcaratus
- †Tanupolama blancoensis
- Superorder Edentata
- Family †Glyptodontidae
- †Glyptotherium texanum
- Family Megalonychidae
- †Megalonyx leptostomus
- Family †Mylodontidae
- †Glossotherium chapadmalens
- Family †Glyptodontidae
- Order Lagomorpha
- Family Leporidae
- †Hypolagus sp.
- †Nekrolagus progressus
- Family Leporidae
- Order Proboscidea
- Family †Gomphotheriidae
- †Stegomastodon mirificus
- Family †Gomphotheriidae
- Order Carnivora
- Family Canidae
- †Borophagus diversidens
- †Canis lepophagus
- Family Felidae
- †Felis cf. lacustris
- †Dinofelis palaeoonca
- †Homotherium
- Family Hyaenidae
- †Chasmaporthetes ossifragus
- Family Mustelidae
- †Canimartes cummins
- †Spilogale rexroadi
- Family Canidae
- Order Rodentia
- Family Sciuridae
- †Paenemarmota barbouri
- Spermophilus sp.
- †Spermophilius howelli
- Family Geomyidae
- Geomys sp.
- Family Heteromyidae
- †Perognathus parlettensis
- †Perognathus rexroadensis
- †Prodipomys centralis
- Family Cricetidae
- Baiomys sp.
- †Bensonomys sp.
- †Neotoma quadriplicatus
- Onychomys sp.
- † Peromyscus kansasensis
- Reithrodontomys sp.
- †Sigmodon medius
- Family Sciuridae
- Order Perissodactyla
- Class Reptilia
- Order Testudinata
- Family Testudinidae
- Geochelone sp.
- Family Testudinidae
- Order Testudinata
Images for kids
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Early photo of Mount Blanco (1891)
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Mount Blanco viewed from east (2002)
See also
In Spanish: Cerro Blanco (Texas) para niños
