Information: - Mekosuchinae was a subfamily of crocodiles from Australia and the South Pacific that have now become extinct. They first appear in the fossil record in the Eocene in Australia, and survived until the Pleistocene in Australia and until the arrival of humans in the Pacific islands of Fiji, New Caledonia and Vanuatu. There is however disagreement on whether or not Mekosuchinae is a subfamily within Crocodylidae, or a distinct family, Mekosuchidae, on its own within the superfamily Crocodyloidea. - Australia, officially the Commonwealth of Australia, is a country comprising the mainland of the Australian continent, the island of Tasmania and numerous smaller islands. It is the world's sixth-largest country by total area. The neighbouring countries are Papua New Guinea, Indonesia and East Timor to the north; the Solomon Islands and Vanuatu to the north-east; and New Zealand to the south-east. Australia's capital is Canberra, and its largest urban area is Sydney. - In biology, an organism is any contiguous living system, such as an animal, plant, fungus, archaeon, or bacterium. All known types of organisms are capable of some degree of response to stimuli, reproduction, growth and development and homeostasis. An organism consists of one or more cells; when it has one cell it is known as a unicellular organism; and when it has more than one it is known as a multicellular organism. Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms. Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs. - Crocodiles (subfamily Crocodylinae) or true crocodiles are large aquatic reptiles that live throughout the tropics in Africa, Asia, the Americas and Australia. Crocodylinae, all of whose members are considered true crocodiles, is classified as a biological subfamily. A broader sense of the term crocodile, Crocodylidae that includes "Tomistoma", is not used in this article. The term crocodile here applies only to the species within the subfamily of Crocodylinae. The term is sometimes used even more loosely to include all extant members of the order Crocodilia, which includes "Tomistoma", the alligators and caimans (family Alligatoridae), the gharials (family Gavialidae), and all other living and fossil Crocodylomorpha. - A genus (genera) is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus. - Binomial nomenclature (also called binominal nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen or a scientific name; more informally it is also called a Latin name. The first part of the name identifies the genus to which the species belongs; the second part identifies the species within the genus. For example, humans belong to the genus "Homo" and within this genus to the species "Homo sapiens". The "formal" introduction of this system of naming species is credited to Carl Linnaeus, effectively beginning with his work "Species Plantarum" in 1753. But Gaspard Bauhin, in as early as 1623, had introduced in his book "Pinax theatri botanici" (English, "Illustrated exposition of plants") many names of genera that were later adopted by Linnaeus. - Australosuchus is an extinct genus of crocodylian belonging to the subfamily Mekosuchinae . The type and only known species Australosuchus clarkae lived during the Late Oligocene and the Early Miocene of southern Australia . The generic name Australosuchus means '' Southern crocodile '' . It was described in 1991 from fossil material discovered at Lake Palankarinna in South Australia . What object entity has the relation of 'parent taxon' with the subject 'australosuchus'? Choices: - animal - area - crocodile - crocodilia - homo - mekosuchinae - plant - tomistoma
crocodilia
Q: Information: - The Rurik dynasty or Rurikids was a dynasty founded by the Varangian prince Rurik, who established himself in Novgorod around the year AD 862. The Rurikids were the ruling dynasty of Kievan Rus' (after 862), as well as the successor principalities of Galicia-Volhynia (after 1199), Chernigov, Vladimir-Suzdal, and the Grand Duchy of Moscow, and the founders of the Tsardom of Russia. They ruled until 1598 and the Time of Troubles, following which they were succeeded by the Romanovs. They are one of Europe's oldest royal houses, with numerous existing cadet branches. - Rurik or Riurik (from "Rrik"; 830 879) was a legendary Varangian chieftain who gained control of Ladoga in 862, built the Holmgard settlement near Novgorod, and founded the Rurik Dynasty, which ruled Kievan Rus (and later the Grand Duchy of Moscow and Tsardom of Russia) until the 17th century. - There are other people known as Saint David and Saint Roman . Boris and Gleb ( Russian : ) , Borys and Hlib ( Ukrainian : ) , Christian names Roman and David , respectively , were the first saints canonized in Kievan Rus ' after the Christianization of the country . Their feast day is observed on July 24 ( August 6 ) . - Kievan Rus' (, ) was a loose federation of East Slavic tribes in Europe from the late 9th to the mid-13th century, under the reign of the Rurik dynasty. The modern peoples of Belarus, Ukraine, and Russia all claim Kievan Rus' as their cultural ancestors. What object entity has the relation of 'noble family' with the subject 'boris and gleb'? Choices: - rurik - rurik dynasty
A: rurik dynasty