Information: - The nautilus (from the Latin form of the original Ancient Greek "", 'sailor') is a pelagic marine mollusc of the cephalopod family Nautilidae, the sole extant family of the superfamily Nautilaceae and of its smaller but near equal suborder, Nautilina. - Pseudorthocerida are generally straight longiconic nautiloids with a subcentral to marginal cyrtochoanitic siphuncle composed of variably expanded segments which may contain internal deposits that may develop into a continuous parietal lining . ( Sweet 1964 ) . Cameral deposits are common and concentrated ventrally . Apices typically have a slight to moderate exogastric curvature The Pseudorthocerida are included in a broad in - group of generally orthoconic cephalopods known as the Orthoceratoidea ( Kroger 2008 ) along with the Ascocerida , Dissidocerida , Lituitida , and Orthocerida . The Pseudorthocerida , Ascocerida , and Dissidocerida all have a cap - shaped apex , shared with Nautilids and Actinocerids , placing them in the '' palcephalopoda '' . The Lituitida and Orthocerida share their spherical or bulbous apices with the Bactritida and Ammonoidea , by which they are included in the '' neocephalopoda '' The Pseudorthocerida were among the last living orthoconic nautiloids . One family , the Trematoceratidae , survived into the Triassic Period . - Spirula spirula is a species of deep-water squid-like cephalopod mollusk. It is the only extant member of the genus Spirula, the family Spirulidae, and the order Spirulida. Because of the shape of its internal shell, it is commonly known as the ram's horn squid or the little post horn squid. Because the live animal has a light-emitting organ, it is also sometimes known as the tail-light squid. - A fish is any member of a group of organisms that consist of all gill-bearing aquatic craniate animals that lack limbs with digits. They form a sister group to the tunicates, together forming the olfactores. Included in this definition are the living hagfish, lampreys, and cartilaginous and bony fish as well as various extinct related groups. Tetrapods emerged within lobe-finned fishes, so cladistically they are fish as well. However, traditionally fish are rendered obsolete or paraphyletic by excluding the tetrapods (i.e., the amphibians, reptiles, birds and mammals which all descended from within the same ancestry). Because in this manner the term "fish" is defined negatively as a paraphyletic group, it is not considered a formal taxonomic grouping in systematic biology. The traditional term pisces (also ichthyes) is considered a typological, but not a phylogenetic classification. - A cephalopod (pronounced or ) is any member of the molluscan class Cephalopoda (Greek plural , "kephalopoda"; "head-feet"). These exclusively marine animals are characterized by bilateral body symmetry, a prominent head, and a set of arms or tentacles (muscular hydrostats) modified from the primitive molluscan foot. Fishermen sometimes call them inkfish, referring to their common ability to squirt ink. The study of cephalopods is a branch of malacology known as teuthology. - Cuttlefish are marine animals of the order Sepiida. They belong to the class Cephalopoda, which also includes squid, octopuses, and nautiluses. Cuttlefish have a unique internal shell, the cuttlebone. Despite their name, cuttlefish are not fish but molluscs. - The siphuncle is a strand of tissue passing longitudinally through the shell of a cephalopod mollusk. Only cephalopods with chambered shells have siphuncles, such as the extinct ammonites and belemnites, and the living nautiluses, cuttlefish, and "Spirula". In the case of the cuttlefish, the siphuncle is indistinct and connects all the small chambers of that animal's highly modified shell; in the other cephalopods it is thread-like and passes through small openings in the walls dividing the chambers. Given the information above, choose from the list below the object entity that exhibits the relation 'taxon rank' with the subject 'pseudorthocerida'. Choices: - branch - class - form - genus - group - order - species - suborder - superfamily
order

Information: - Natalia Yevgenievna Mishkutionok ( Russian : , born July 14 , 1970 ) is a Russian former pair skater who now works as a coach . With Artur Dmitriev , she is the 1992 Olympic champion , the 1994 Olympic silver medalist , a two - time World champion ( 1991 , 1992 ) , and a two - time European champion ( 1991 , 1992 ) . - Irina Konstantinovna Rodnina (born 12 September 1949) is a Russian politician and figure skater, who is the only pair skater to win 10 successive World Championships (196978) and three successive Olympic gold medals (1972, 1976, 1980). She was elected to the State Duma in the 2007 legislative election as a member of President Vladimir Putin's United Russia party. As a figure skater, she initially competed with Alexei Ulanov and later teamed up with Alexander Zaitsev. She is the first pair skater to win the Olympic title with two different partners, followed only by Artur Dmitriev. - Artur Valeryevich Dmitriev (born 21 January 1968) is a Russian former pair skater who competed internationally for the Soviet Union, the Unified Team, and Russia. He is a two-time Olympic champion, having won gold with Natalia Mishkutionok in 1992 and with Oksana Kazakova in 1998. He and Mishkutionok also won Olympic silver in 1994. Along with Irina Rodnina, Dmitriev is the only pair skater to win the Olympics with two different partners. - The Soviet Union, officially the Union of Soviet Socialist Republics (USSR " ) was a socialist state in Eurasia that existed from 1922 to 1991. A union of multiple subnational republics, its government and economy were highly centralized. The Soviet Union was a one-party federation, governed by the Communist Party with Moscow as its capital. Given the information above, choose from the list below the object entity that exhibits the relation 'occupation' with the subject 'natalia mishkutionok'. Choices: - figure skater - politician - socialist - soviet union
figure skater