Como Bluff
Information about Como Bluff
Como Bluff is a long ridge extending east-west, located between the towns of Rock River and Medicine Bow, Wyoming. The ridge is an anticline, formed as a result of compressional geological folding. Three geological formations, the Sundance, the Morrison, and the Cloverly Formations, containing fossil remains from the Late Jurassic of the Mesozoic Era are exposed. 19th century paleontologists discovered many well-preserved specimens of dinosaurs, as well as mammals, turtles, crocodilians, and fish from the Morrison Formation. Because of this, Como Bluff is considered to be one of the major sites for the early discovery of dinosaur remains. Among the species discovered is the only known specimen of Coelurus. Significant discoveries were made in 22 different areas scattered along the entire length of the ridge. It is included on the National Register of Historic Places.
In later years, the American Museum of Natural History and Yale University jointly reopened Quarry 9, the Mammal Quarry, 1968-1970, finding only a few specimens[5]. More recently, Robert Bakker has done some collecting there with a variety of groups.
FOSSIL is a standard for allowing serial communication for telecommunications programs under the DOS operating system.
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Paleontology, palaeontology or palæontology (from Greek: paleo, "ancient"; ontos
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)
Multicolored (variegated) beds of the Morrison Formation at Como Bluff, Wyoming. Many historical dinosaur sites are located along the flanks of the bluff. The Sundance Formation is visible as the reddish beds at the base of the bluff.
History of discovery
The discovery of dinosaurs at Como Bluff has been recounted numerous times, most notably by Schuchert and LeVene[1], Shur[2], Ostrom and McIntosh[3], and Jaffe [4]. Most of the specimens were collected by men working for O.C. Marsh between 1877-1889, although some were collected by the Hubbel brothers for E.D. Cope between 1879-1880. The American Museum of Natural History excavated in 1897[1]-1898[2], finding two partial skeletons of sauropods. A summary of the quarries and their contents is given below.In later years, the American Museum of Natural History and Yale University jointly reopened Quarry 9, the Mammal Quarry, 1968-1970, finding only a few specimens[5]. More recently, Robert Bakker has done some collecting there with a variety of groups.
Como Bluff historical quarries (pre-1900)
Data source:[6]. [7] [8]. [9]. (h)= holotype|
AMNH Quarry 1
AMNH Quarry 2
AMNH localities unknown (some could be from Quarry 1 or 2)
[Fredrick] Brown’s Quarry A
Brown’s Quarry B
Brown’s Quarry C
Brown’s Quarry D
[Authur] Lakes Quarry 1A (Big Canyon Quarry)
[E.D.] Cope's Quarry 3
Cope's Quarry 4
Cope's Quarry 5
Cope's localities unknown (could be from Quarry 1, 2)
[Harlow] Reed’s Quarry 1
Reed’s Quarry 1 ½
Reed’s Quarry 2
Reed’s Quarry 3
Reed’s Quarry 4
Reed’s Quarry 5
Reed’s Quarry 6
Reed’s Quarry 7
Reed’s Quarry 8
|
Reed’s Quarry 9 (Mammal Quarry)
Reed’s Quarry 10
Reed’s Quarry 11
Reed’s Quarry 12 (Robbers' Roost Quarry)
Reed’s Quarry 13
Reed Quarry 14
|
References
1. ^ Schuchert, C., and LeVene, C.M. 1940. O.C.Marsh, Pioneer in Paleontology. Yale University Press, New Haven.
2. ^ Shur, E. 1974. The Fossil Feud. Exposition Press, NY. 340p.
3. ^ Ostrom, J,H., and McIntosh, J.S. 1966. Marsh's Dinosaurs: The Collections from Como Bluff. Yale University Press, New Haven.
4. ^ Jaffe, M. 2000. The Gilded Dinosaur. Crown Publ., New York.
5. ^ Prothero, D.R. 1981. New Jurassic mammals from Como Bluff, Wyoming, and the interrelationships of non-tribosphenic Theria. Bulletin of the American Museum of Natural History 167: 281:325
6. ^ Ostrom and McIntosh
7. ^ Carrano, M.T., and Velez-Juarbe, J. 2006. Paleoecology of the Quarry 9 vertebrate assemblage from Como Bluff, Wyoming (Morrison Formation, Late Jurassic). Palaeogeography, Palaeoclimatology, Palaeoecology 237:147-159.
8. ^ Foster, J.R. 2003. Paleoecological analysis of the vertebrate fauna of the Morrison Formation (Upper Jurassic), Rocky Mountain region, USA. New Mexico Museum of Natural History and Science 23:1-95.
9. ^ Division of Paleontology, American Museum of Natural History| [3]
2. ^ Shur, E. 1974. The Fossil Feud. Exposition Press, NY. 340p.
3. ^ Ostrom, J,H., and McIntosh, J.S. 1966. Marsh's Dinosaurs: The Collections from Como Bluff. Yale University Press, New Haven.
4. ^ Jaffe, M. 2000. The Gilded Dinosaur. Crown Publ., New York.
5. ^ Prothero, D.R. 1981. New Jurassic mammals from Como Bluff, Wyoming, and the interrelationships of non-tribosphenic Theria. Bulletin of the American Museum of Natural History 167: 281:325
6. ^ Ostrom and McIntosh
7. ^ Carrano, M.T., and Velez-Juarbe, J. 2006. Paleoecology of the Quarry 9 vertebrate assemblage from Como Bluff, Wyoming (Morrison Formation, Late Jurassic). Palaeogeography, Palaeoclimatology, Palaeoecology 237:147-159.
8. ^ Foster, J.R. 2003. Paleoecological analysis of the vertebrate fauna of the Morrison Formation (Upper Jurassic), Rocky Mountain region, USA. New Mexico Museum of Natural History and Science 23:1-95.
9. ^ Division of Paleontology, American Museum of Natural History| [3]
See also
- List of fossil sites (with link directory)
Rock River, Wyoming
Seal
Motto:
Location of Rock River, Wyoming
Coordinates:
Country United States
State Wyoming
County Albany
Area
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Seal
Motto:
Location of Rock River, Wyoming
Coordinates:
Country United States
State Wyoming
County Albany
Area
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Medicine Bow, Wyoming
Seal
Motto:
Location of Medicine Bow, Wyoming
Coordinates:
Country United States
State Wyoming
County Carbon
Area
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Seal
Motto:
Location of Medicine Bow, Wyoming
Coordinates:
Country United States
State Wyoming
County Carbon
Area
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State of Wyoming
Flag of Wyoming Seal of Wyoming
Nickname(s): Equality State, Cowboy State,
Motto(s): Equal rights
Official language(s) English
Capital Cheyenne
Largest city
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Flag of Wyoming Seal of Wyoming
Nickname(s): Equality State, Cowboy State,
Motto(s): Equal rights
Official language(s) English
Capital Cheyenne
Largest city
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anticline is a fold that is convex up or to the youngest beds.
On a geologic map, anticlines are usually recognized by a sequence of rock layers that are progressively older toward the center of the fold because the uplifted core of the fold is preferentially eroded to a
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On a geologic map, anticlines are usually recognized by a sequence of rock layers that are progressively older toward the center of the fold because the uplifted core of the fold is preferentially eroded to a
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Morrison Formation is a distinctive sequence of Late Jurassic sedimentary rock that is found in the western United States and Canada, which has been the most fertile source of dinosaur fossils in North America.
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The Cloverly Formation are Lower Cretaceous strata located in Montana and Wyoming, in the western United States. The term now includes strata that had formerly been called the Dakota Formation in central and southern Wyoming.
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- For other uses of the term, see Fossil (disambiguation)
FOSSIL is a standard for allowing serial communication for telecommunications programs under the DOS operating system.
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The Mesozoic Era is one of three geologic eras of the Phanerozoic eon. The division of time into eras dates back to Giovanni Arduino, in the 18th century, although his original name for the era now called the 'Mesozoic' was 'Secondary' (making the modern era the 'Tertiary').
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- Palaeontology redirects here. For the scientific journal, see Palaeontology (journal).
Paleontology, palaeontology or palæontology (from Greek: paleo, "ancient"; ontos
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Dinosauria *
Owen, 1842
Orders & Suborders
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Owen, 1842
Orders & Suborders
- Ornithischia
- Cerapoda
- Thyreophora
- Saurischia
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Coelurus
Binomial name
Coelurus fragilis
Marsh, 1879
Coelurus (see-LOOR-us) was a coelurosaur dinosaur of the late Jurassic Period (Kimmeridgian-Tithonian stages, 150 million years ago).
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Binomial name
Coelurus fragilis
Marsh, 1879
Coelurus (see-LOOR-us) was a coelurosaur dinosaur of the late Jurassic Period (Kimmeridgian-Tithonian stages, 150 million years ago).
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National Register of Historic Places is the United States government's official list of districts, sites, buildings, structures, and objects worthy of preservation. The National Historic Preservation Act (NHPA) established the National Register and the process for adding properties
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Othniel Charles Marsh (October 29, 1831 - March 18, 1899) was one of the pre-eminent paleontologists of the 19th century, who discovered and named many fossils found in the American West.
Marsh was born in Lockport, New York.
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Marsh was born in Lockport, New York.
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Edward Drinker Cope (July 28, 1840–April 12, 1897) was an American paleontologist and comparative anatomist, as well as a noted herpetologist and ichthyologist.
Cope was born in Philadelphia to Quaker parents.
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Cope was born in Philadelphia to Quaker parents.
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List of fossil sites:
Africa
Site Country/State Age
Afar Depression Ethiopia Pliocene
Ahl al Oughlam Morrocco Late Pliocene
Awash River Ethiopia Pliocene
Baharija Formation Northern Africa Upper Cretaceous
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Africa
Africa
Site Country/State Age
Afar Depression Ethiopia Pliocene
Ahl al Oughlam Morrocco Late Pliocene
Awash River Ethiopia Pliocene
Baharija Formation Northern Africa Upper Cretaceous
..... Click the link for more information.
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