Cha-Kjeri Formation

Last updated
Cha-Kjeri Formation
Stratigraphic range: Eifelian
~392–384  Ma
Type Geological formation
Sub-unitsPurple Sandstone member
Lithology
Primary Sandstone
Location
Coordinates 19°12′S64°54′W / 19.2°S 64.9°W / -19.2; -64.9
Approximate paleocoordinates 69°36′S85°48′W / 69.6°S 85.8°W / -69.6; -85.8
Region Chuquisaca Department
CountryFlag of Bolivia.svg  Bolivia
Extent Cordillera Oriental
Bolivia physical map.svg
Gold pog.svg
Cha-Kjeri Formation (Bolivia)

The Cha-Kjeri Formation is an Eifelian geologic formation of central Bolivia. The formation comprises red sandstones deposited in a marine environment. [1]

Contents

Fossil content

The formation has provided fossils of Globithyris aff. diana .

See also

Related Research Articles

<span class="mw-page-title-main">Chuquisaca Department</span> Department of Bolivia

Chuquisaca ; Guarani: Chuquisaca; Quechua: Chuqichaka; Aymara: Chuqisaka) is a department of Bolivia located in the center south. It borders on the departments of Cochabamba, Tarija, Potosí, and Santa Cruz. The departmental capital is Sucre, which is also the constitutional capital of Bolivia.

<span class="mw-page-title-main">Altiplano</span> Large plateau in west-central South America

The Altiplano, Collao or Andean Plateau, in west-central South America, is the most extensive high plateau on Earth outside Tibet. The plateau is located at the latitude of the widest part of the north–south-trending Andes. The bulk of the Altiplano lies in Bolivia, but its northern parts lie in Peru, and its southwestern fringes lie in Chile.

First appearance datum (FAD) is a term used by geologists and paleontologists to designate the first appearance of a species in the geologic record. FADs are determined by identifying the geologically oldest fossil discovered, to date, of a particular species. A related term is last appearance datum (LAD), the last appearance of a species in the geologic record.

<span class="mw-page-title-main">Walter Isaacson</span> American author, journalist and professor

Walter Seff Isaacson is an American journalist who has written biographies of Henry Kissinger, Benjamin Franklin, Albert Einstein, Steve Jobs, Jennifer Doudna and Elon Musk. As of 2024, Isaacson is a professor at Tulane University and, since 2018, an interviewer for the PBS and CNN news show Amanpour & Company.

<span class="mw-page-title-main">Thorpe B. Isaacson</span> American religious leader

Henry Thorpe Beal Isaacson was a leader in the Church of Jesus Christ of Latter-day Saints, serving as a counselor in the First Presidency to church president David O. McKay from 1965 to 1970.

<span class="mw-page-title-main">Peter Isaacson</span> Australian pilot and publisher

Peter Stuart Isaacson, AM, DFC, AFC, DFM was an Australian publisher and decorated military pilot. He was the owner of Peter Isaacson Publications, publisher of various trade journals and suburban newspapers including the Southern Cross and the Sunday Observer in Melbourne. During World War II, he served in the Royal Australian Air Force (RAAF) as a pilot with RAF Bomber Command and was awarded the Distinguished Flying Cross, the Air Force Cross and the Distinguished Flying Medal.

<span class="mw-page-title-main">Sacabamba</span> Place in Cochabamba Department, Bolivia

Sacabamba is a town in the Cochabamba Department in central Bolivia. It is the capital of Sacabamba Municipality, the fourth municipal section of Esteban Arce Province. At the time of census 2001 it had a population of 636.

Zulmasuchus is an extinct genus of sebecid sebecosuchian mesoeucrocodylian. Its fossils have been found in Early Paleocene-age rocks of the Santa Lucía Formation in Bolivia. Zulmasuchus was named in 2007 by Alfredo Paolillo and Omar Linares for fossils originally described by Buffetaut and Marshall in 1991 as Sebecus querejazus. Thus, the type species is Sebecus querezajus and the combinatio nova is Zulmasuchus querejazus.

The Santa Lucía Formation is a Maastrichtian to Paleocene (Danian) geologic formation in Bolivia. Fossil ornithopod tracks have been reported from the Cretaceous lower part of the formation. It is the type formation of the Tiupampan South American land mammal age.

Jason Isaacson is a Minnesota politician and former member of the Minnesota Senate. A member of the Minnesota Democratic–Farmer–Labor Party (DFL), he was elected to the Minnesota Senate in 2016, after serving in the Minnesota House of Representatives for four years. He represented District 42 in the northern Twin Cities metropolitan area, including Arden Hills, Gem Lake, Little Canada, Mounds View, Shoreview, Vadnais Heights, and parts of Roseville, Spring Lake Park, and Blaine.

<span class="mw-page-title-main">Morris Isaacson High School</span> Government school in Mphuti Street, Central Western Jabavu, Soweto

Morris Isaacson High School is a government secondary school in Soweto. Founded in 1956, the school took an important role at the start of the Soweto Uprising in 1976.

<i>Archaeohyrax</i> Extinct genus of notoungulates

Archaeohyrax is a genus of extinct notoungulate mammal known from the Middle Eocene to Oligocene of Argentina and Bolivia.

<i>Prohegetotherium</i> Extinct genus of notoungulates

Prohegetotherium is an extinct genus of hegetotheriid notoungulates from the Late Oligocene to Early Miocene of the Agua de la Piedra, Mariño & Sarmiento Formations of Argentina, the Petaca and Salla Formations of Bolivia, and Fray Bentos Formation of Uruguay.

The Gamoneda Formation is an Emsian geologic formation of southern Bolivia. The approximately 340 metres (1,120 ft) thick formation comprises marine micaceous grey siltstones and burrowed grey sandstones and shales.

<span class="mw-page-title-main">Mary Isaacson</span> Member of the Pennsylvania House of Representatives

MaryLouise Isaacson is an American politician serving as a member of the Pennsylvania House of Representatives from the 175th district since 2019.

Juchuysillu is an extinct genus of interatheriid notoungulate. It lived from the Early to the Middle Miocene, and its fossils have been found in Bolivia.

Tricoelodus is an extinct genus of adianthid litopterns that lived during the Late Oligocene in what is now Argentina and Bolivia. Fossils of this genus have been found in the Sarmiento Formation of Argentina and the Salla Formation of Bolivia.

Federicoanaya is an extinct genus of interatheriine notoungulates that lived during the Late Oligocene in what is now Bolivia. Fossils of this genus have been found in the Salla Formation of Bolivia.

Brucemacfaddenia is an extinct genus of interatheriine notoungulates that lived during the Late Oligocene in what is now Bolivia. Fossils of this genus have been found in the Salla Formation of Bolivia.

References

  1. USNM loc. 17905 - Isaacson field locality 18 at Fossilworks.org

Further reading