Borsky District () is an administrativeCharter of Samara Oblast and municipalLaw #189-GD district (

raion A raion (also spelt rayon) is a type of administrative unit of several post-Soviet states. The term is used for both a type of subnational entity and a division of a city. The word is from the French (meaning 'honeycomb, department'), and is c ...

), one of the twenty-seven in

Samara Oblast Samara Oblast (, ) is a federal subjects of Russia, federal subject of Russia (an oblast). Its administrative center is the types of inhabited localities in Russia, city of Samara. From 1935 to 1991, it was known as Kuybyshev Oblast. As of the Rus ...

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

. It is located in the east of the

oblast An oblast ( or ) is a type of administrative division in Bulgaria and several post-Soviet states, including Belarus, Russia and Ukraine. Historically, it was used in the Russian Empire and the Soviet Union. The term ''oblast'' is often translated i ...

. The area of the district is . Its

administrative center An administrative centre is a seat of regional administration or local government, or a county town, or the place where the central administration of a commune, is located. In countries with French as the administrative language, such as Belgiu ...

is the

rural locality In general, a rural area or a countryside is a geographic area that is located outside towns and cities. Typical rural areas have a low population density and small settlements. Agricultural areas and areas with forestry are typically describ ...

(a '' selo'') of Borskoye. Population: 24,433 ( 2010 Census); The population of Borskoye accounts for 36.6% of the district's total population.

Paleontology

In the Lower

Triassic The Triassic ( ; sometimes symbolized 🝈) is a geologic period and system which spans 50.5 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.4 Mya. The Triassic is t ...

of Borsky District remains of

temnospondyls Temnospondyli (from Greek τέμνειν, ''temnein'' 'to cut' and σπόνδυλος, ''spondylos'' 'vertebra') or temnospondyls is a diverse ancient order of small to giant tetrapods—often considered primitive amphibians—that flourished wo ...

were found. These fossil taxa are '' Samarabatrachus'', '' Syrtosuchus'', ''

Qantas Qantas ( ), formally Qantas Airways Limited, is the flag carrier of Australia, and the largest airline by fleet size, international flights, and international destinations in Australia and List of largest airlines in Oceania, Oceania. A foundi ...

'', ''

Dromotectum ''Dromotectum'' is an extinct genus of bystrowianid chroniosuchians from the Late Permian of China and Early Triassic of Russia. Two species have been named: the type species ''D. spinosum'' and the species ''D. largum''. ''D. spinosum'', the fi ...

'', ''

Benthosuchus ''Benthosuchus'' (meaning "deep water crocodile") is an extinct genus of temnospondyli, temnospondyl amphibian from the Early Triassic of Russia. It was primarily aquatic, living in rivers and lakes. Multiple species are known, with the largest ...

'', ''

Tupilakosaurus ''Tupilakosaurus'' is an extinct genus of dvinosaurian temnospondyl within the family Tupilakosauridae. Two species are known: *''Tupilakosaurus heilmani'' Nielsen, 1954 — Wordie Creek Formation, Greenland *''Tupilakosaurus wetlugensis'' Sh ...

'', '' Selenocara'', '' Angusaurus'' and ''

Wetlugasaurus ''Wetlugasaurus'' (meaning "Vetluga River lizard") is an extinct genus of temnospondyl from the Early Triassic (Olenekian) Charkabozh, Kzylsaiskaya, Petropavlovka, Kamennyi Yar and Vetluga Series Formations of northern Russia and Greenland. ...

''. Other specimens possibly belong to ''

Axitectum ''Axitectum'' is an extinct genus of bystrowianid chroniosuchians from lower Triassic deposits of Nizhni Novgorod and Kirov Regions, Russia. It was a rather large animal judging by the size of its vertebrae. The back was covered in bands of hig ...

'' and ''

Thoosuchus ''Thoosuchus'' (meaning "active crocodile") is an extinct genus of basal trematosauroid trematosaurian temnospondyl. Fossils have been found from Russia and date back to the Early Triassic. It is the type genus of the family Thoosuchidae, form ...

Paleontology

References

Notes

Sources