Thrinaxodon Col ( Coordinates: ) is a rock col 2 nautical miles (3.7 km) southeast of Rougier Hill. The col is along the ridge that trends southward from Rougier Hill in the Cumulus Hills, Queen Maud Mountains. The name was proposed to Advisory Committee on Antarctic Names (US-ACAN) in 1971 by geologist David H. Elliot of the Ohio State University Institute of Polar Studies. The col is a very important fossil (vertebrate) locality at which several specimens of the mammal-like reptile Thrinaxodon were found.
A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.
Rougier Hill is an ice-free hill just east of LaPrade Valley in the north part of the Cumulus Hills, overlooking the south side of McGregor Glacier. Named by the Texas Tech Shackleton Glacier Expedition (1964–65) for Michael Rougier, staff photographer with Life Magazine who was seriously injured while climbing this hill with the expedition.
The Cumulus Hills are several groups of largely barren hills in Antarctica. Divided by the Logie Glacier, they are bounded by Shackleton Glacier on the west, McGregor Glacier on the north and Zaneveld Glacier on the south. The exposed rock in this area was observed on a number of occasions to give rise to the formation of cumulus clouds, considered to be very rare at this elevation. The hills were named by the Southern Party of the New Zealand Geological Survey Antarctic Expedition (1961–62) because of these clouds.
The United States Geological Survey is a scientific agency of the United States government. The scientists of the USGS study the landscape of the United States, its natural resources, and the natural hazards that threaten it. The organization has four major science disciplines, concerning biology, geography, geology, and hydrology. The USGS is a fact-finding research organization with no regulatory responsibility.
The Geographic Names Information System (GNIS) is a database that contains name and locative information about more than two million physical and cultural features located throughout the United States of America and its territories. It is a type of gazetteer. GNIS was developed by the United States Geological Survey in cooperation with the United States Board on Geographic Names (BGN) to promote the standardization of feature names.
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Brodnax is a town in Brunswick and Mecklenburg counties in the U.S. state of Virginia. The population was 298 at the 2010 census.
Thrinaxodon is an extinct genus of cynodonts, most commonly regarded by its species T. liorhinus which lived in what are now South Africa and Antarctica. Thrinaxodon has been dated between the Permian–Triassic boundary and the mid-Triassic. Its survival of the extinction may have been due to its burrowing habits.
Galesaurus was a prehistoric carnivorous therapsid that lived between the Induan and the Olenekian age in what is now South Africa. It was incorrectly classified as a dinosaur by Sir Richard Owen in 1859.
Quonset Glacier is a glacier about 20 miles long which drains the north slopes of Wisconsin Range between Mount LeSchack and Ruseski Buttress and trends west-northwest to enter the north side of Davisville Glacier. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy air photos, 1960–64, it was named by the Advisory Committee on Antarctic Names (US-ACAN) after the Naval Air Station Quonset Point, Rhode Island, home base of Antarctic Development Squadron Six (VXE-6).
Siefker Ridge is a rugged ridge 6 miles (10 km) long, extending northwest from the west part of Anderson Massif in the Heritage Range. Named by the University of Minnesota Geological Party to these mountains, 1963–64, for electronics technician Dennis R. Siefker, U.S. Navy, who was in charge of the automatic weather station at the party's camp at Camp Hills.
Gillespie Glacier is a small tributary glacier just southwest of Mount Kenyon, descending the west slopes of the Cumulus Hills to enter Shackleton Glacier. Named by Advisory Committee on Antarctic Names (US-ACAN) for Lester F. Gillespie, United States Antarctic Research Program (USARP) physicist at South Pole Station, winter 1962.
Crilly Hill is the central of three ice-free hills at the north side of McGregor Glacier, 6 nautical miles (11 km) south-southwest of Mount Finley, in the Queen Maud Mountains. It was named by the Texas Tech Shackleton Glacier Expedition (1964–65) for Specialist 6th Class Clifford L. Crilly, a medic with the U.S. Army Aviation Detachment which supported the expedition.
John Nunatak is an isolated granite nunatak in Antarctica, lying 4 nautical miles (7 km) north of the Pirrit Hills. The nunatak was examined by United States Antarctic Research Program geologists Edward Thiel and Campbell Craddock on December 13, 1959, in the course of an airlifted geophysical traverse along the 88th meridian West. It was named by the Advisory Committee on Antarctic Names after steelworker Orlan F. John, U.S. Navy, who lost his life in a construction accident at McMurdo Sound, November 2, 1960.
Sullivan Heights is a compact group of mountains in western Antarctica rising to 2,760 m (9,060 ft) in Mount Levack centered 11.5 nautical miles east-northeast of Mount Tyree in the Sentinel Range, Ellsworth Mountains. Roughly elliptical in plan and 11 nautical miles long, the feature includes sharp mountain peaks, rugged ridges, and steep peripheral scarps. The heights are encompassed by the flow of the Crosswell, Ellen, and Dater Glaciers, with their interior drained also by Pulpudeva and Strinava Glaciers. Separated from Vinson Massif to the south-southwest by Vranya Pass.
Peters Butte is a flat-topped, steep-sided rock butte on the south side of McCarthy Valley in Long Hills, Horlick Mountains. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photographs, 1958-60. Named by Advisory Committee on Antarctic Names (US-ACAN) for Norman L. Peters, meteorologist at Byrd Station in 1958.
McGregor Glacier is a tributary glacier, 14 nautical miles (26 km) long and 3 nautical miles (6 km) wide, draining the southwest slopes of the Prince Olav Mountains in Antarctica, and flowing west to enter Shackleton Glacier just north of the Cumulus Hills. It was named by the Southern Party of the New Zealand Geological Survey Antarctic Expedition (1961–62) for V.R. McGregor, a geologist with that party.
Skelly Peak is a peak on the end of a spur, marking the northeast limit of Watlack Hills in the Heritage Range, Ellsworth Mountains. It was mapped by the United States Geological Survey (USGS) from ground surveys and U.S. Navy air photos from 1961-66. It was named by the Advisory Committee on Antarctic Names (US-ACAN) for Donald J. Skelly, a hospital corpsman and U.S. Navy chief petty officer in charge of Palmer Station in 1966.
Snowshoe Glacier is a glacier 8 nautical miles (15 km) long flowing west from a col in the southwest flank of Neny Glacier into Neny Fjord, western Graham Land. Roughly surveyed from the ground (1936) and photographed from the air (1937) by British Graham Land Expedition (BGLE). Surveyed by Falkland Islands Dependencies Survey (FIDS) in 1949. The name was suggested by K.S.P. Butler of the FIDS in 1948 because the shape of the glacier with its narrow head and wide mouth resembles a snowshoe.
Mount Hoffman is a distinctive rock peak 1.5 nautical miles (3 km) south-southwest of Mount Tidd, in the southern flank of the Pirrit Hills of Antarctica. The peak was positioned by the U.S. Ellsworth–Byrd Traverse Party on December 7, 1958 and was named for Daniel Hoffman, a mechanic with the traverse party.
Todd Ridge is a narrow, flat-topped rock ridge at the northwest end of Long Hills, Horlick Mountains. Mapped by United States Geological Survey (USGS) from surveys and U.S. Navy aerial photography, 1958-60. Named by Advisory Committee on Antarctic Names (US-ACAN) for Marion N. Todd, aurora scientist at Byrd Station in 1958.
LaPrade Valley is a valley in the Cumulus Hills of Antarctica with steep rock walls and ice-covered floor, about 3 nautical miles (6 km) long, extending north to McGregor Glacier, just west of Rougier Hill. It was named by the Texas Tech Shackleton Glacier Expedition (1964–65) for Kerby E. LaPrade, a graduate student at Texas Technological College, and a member of the expedition.
LaVergne Glacier is a tributary glacier about 7 nautical miles (13 km) long, flowing east along the southern slopes of the Seabee Heights of Antarctica to enter Liv Glacier close southwest of McKinley Nunatak. It was named by the Advisory Committee on Antarctic Names for Lieutenant Commander Cornelius B. de LaVergne, Deputy Commander of Antarctic Support Activity at McMurdo Station during U.S. Navy Operation Deep Freeze, 1961.
Coloniatherium is a dryolestoid mammal from the Late Cretaceous of Argentina. The single species, Coloniatherium cilinskii, was a large member of the family Mesungulatidae.
Harmony Cove is a cove entered between Harmony Point and The Toe on the west side of Nelson Island, in the South Shetland Islands, Antarctica. It was named by American sealers in about 1820 after the sealing vessel Harmony, under Captain Thomas Ray, one of several American sealing vessels headquartered at Harmony Cove during the 1820–21 season.