Agate Fossil Beds National Monument: Difference between revisions
imported>GreenC bot Move 3 urls. Wayback Medic 2.5 per WP:URLREQ#nps.gov |
|||
| Line 23: | Line 23: | ||
| visitation_ref = <ref name="visits">{{NPS Visitation|accessdate=May 19, 2017}}</ref> | | visitation_ref = <ref name="visits">{{NPS Visitation|accessdate=May 19, 2017}}</ref> | ||
| governing_body = [[National Park Service]] | | governing_body = [[National Park Service]] | ||
| website = [ | | website = [https://www.nps.gov/agfo/index.htm Agate Fossil Beds National Monument] | ||
}} | }} | ||
| Line 35: | Line 35: | ||
Originally the Agate Springs Ranch, a working cattle ranch, was owned by Capt. James Cook.{{cn|date=May 2025}} The monument's museum collection also contains more than 500 artifacts from the Cook Collection of [[Plains Indians]] artifacts. | Originally the Agate Springs Ranch, a working cattle ranch, was owned by Capt. James Cook.{{cn|date=May 2025}} The monument's museum collection also contains more than 500 artifacts from the Cook Collection of [[Plains Indians]] artifacts. | ||
The national monument was authorized on June 5, 1965, but was not established until June 14, 1997. The Harold J. Cook Homestead (Bone Cabin Complex) was listed on the [[National Register of Historic Places]] in 1977.<ref>{{cite web |url=http://www.nebraskahistory.org/histpres/nebraska/sioux.htm |title=Nebraska National Register Sites in Sioux County |publisher=Nebraska State Historical Society |access-date=October 18, 2013 |archive-url=https://web.archive.org/web/20131019133106/http://www.nebraskahistory.org/histpres/nebraska/sioux.htm |archive-date=October 19, 2013 |url-status=usurped }}</ref> Agate Fossil Beds is maintained by the [[National Park Service]].<ref>{{cite web |title=Agate Fossil Beds National Monument |publisher=U.S. National Park Service |url= | The national monument was authorized on June 5, 1965, but was not established until June 14, 1997. The Harold J. Cook Homestead (Bone Cabin Complex) was listed on the [[National Register of Historic Places]] in 1977.<ref>{{cite web |url=http://www.nebraskahistory.org/histpres/nebraska/sioux.htm |title=Nebraska National Register Sites in Sioux County |publisher=Nebraska State Historical Society |access-date=October 18, 2013 |archive-url=https://web.archive.org/web/20131019133106/http://www.nebraskahistory.org/histpres/nebraska/sioux.htm |archive-date=October 19, 2013 |url-status=usurped }}</ref> Agate Fossil Beds is maintained by the [[National Park Service]].<ref>{{cite web |title=Agate Fossil Beds National Monument |publisher=U.S. National Park Service |url=https://www.nps.gov/agfo/index.htm |access-date=December 16, 2009| archive-url= https://web.archive.org/web/20091202222815/http://www.nps.gov/agfo/index.htm| archive-date= December 2, 2009 | url-status= live}}</ref> | ||
== Paleontology == | == Paleontology == | ||
| Line 81: | Line 81: | ||
==External links== | ==External links== | ||
{{Commons category}} | {{Commons category}} | ||
* Official NPS website: [ | * Official NPS website: [https://www.nps.gov/agfo/index.htm Agate Fossil Beds National Monument] | ||
{{Protected areas of Nebraska}} | {{Protected areas of Nebraska}} | ||
Latest revision as of 20:39, 1 June 2025
Template:Short description Template:Use mdy dates Script error: No such module "Infobox".Template:Template otherScript error: No such module "Check for unknown parameters".
Agate Fossil Beds National Monument is a U.S. National Monument near Harrison, Nebraska. The main features of the monument are a valley of the Niobrara River and the fossils found on Carnegie Hill and University Hill.
The area largely consists of grass-covered plains. Plants on the site include prairie sandreed, blue grama, little bluestem and needle and thread grass, and the wildflowers lupin, spiderwort, western wallflower and sunflowers.
History
Originally the Agate Springs Ranch, a working cattle ranch, was owned by Capt. James Cook.Script error: No such module "Unsubst". The monument's museum collection also contains more than 500 artifacts from the Cook Collection of Plains Indians artifacts.
The national monument was authorized on June 5, 1965, but was not established until June 14, 1997. The Harold J. Cook Homestead (Bone Cabin Complex) was listed on the National Register of Historic Places in 1977.[1] Agate Fossil Beds is maintained by the National Park Service.[2]
Paleontology
The site is best known for a large number of well-preserved Miocene fossils, many of which were found at dig sites on Carnegie and University Hills. Fossils from the Harrison Formation and Anderson Ranch Formation, which date to the Arikareean in the North American land mammal classification, about 20 to 16.3 million years ago, are among some of the best specimens of Miocene mammals.[3]
Species found in Agate include:
- Merychippus and Parahippus, ancestors of the modern day horse.
- Diceratherium, two-horned rhinoceros.
- Menoceras, pony-sized rhinoceros, the most common animal found in the fossil beds.[4]
- Daphoenodon and Ysengrinia, two types of mid-sized bear dogs.
- Promerycochoerus, a semiaquatic hippo-like oreodont.
- Daeodon, the largest Entelodont (giant pig-like ungulate).
- Stenomylus, gazelle-like camelids.
- Oxydactylus, giraffe-like camelids.
- Palaeocastor, land beavers that dug large corkscrew-shaped burrows (Daemonelix).[5]
- Moropus, a chalicothere which are relatives of rhinos and horses.
- Merychyus, a sheep-like oreodont.
- Syndyoceras, antelope-like mammal and extinct relatives of artiodactyls.
Gallery
|
See also
Script error: No such module "Portal".
- List of fossil sites
- List of national monuments of the United States
- Ashfall Fossil Beds
- Florissant Fossil Beds National Monument
- John Day Fossil Beds National Monument
- Scotts Bluff National Monument
References
External links
- Official NPS website: Agate Fossil Beds National Monument
Template:Protected areas of Nebraska Template:National Monuments of the United States Template:NRHP in Sioux County, Nebraska
- Pages with script errors
- Pages with broken file links
- Federal lands in Nebraska
- National Park Service national monuments in Nebraska
- Cenozoic paleontological sites of North America
- Miocene paleontological sites
- Natural history of Nebraska
- Protected areas established in 1997
- Dinosaur museums in the United States
- Natural history museums in Nebraska
- Museums in Sioux County, Nebraska
- Protected areas of Sioux County, Nebraska
- 1997 establishments in Nebraska
- Fossil parks in the United States
- Paleontology in Nebraska
- Paleontological protected areas in the United States
- 1997 in paleontology
- National Register of Historic Places in Sioux County, Nebraska