Q:Information: - The Paleogene (or ; also spelled Palaeogene or Palogene; informally Lower Tertiary) is a geologic period and system that spans 43 million years from the end of the Cretaceous Period million years ago (Mya) to the beginning of the Neogene Period Mya. It is the beginning of the Cenozoic Era of the present Phanerozoic Eon. The Paleogene is most notable for being the time during which mammals diversified from relatively small, simple forms into a large group of diverse animals in the wake of the CretaceousPaleogene extinction event that ended the preceding Cretaceous Period. - John Day Fossil Beds National Monument is a U.S. National Monument in Wheeler and Grant counties in east-central Oregon. Located within the John Day River basin and managed by the National Park Service, the park is known for its well-preserved layers of fossil plants and mammals that lived in the region between the late Eocene, about 45million years ago, and the late Miocene, about 5million years ago. The monument consists of three geographically separate units: Sheep Rock, Painted Hills, and Clarno. - Oxyaena ("Sharp" or "Drawn-out" + hyena) is an extinct genus of oxyaenid mammal from the latest Paleocene to early Eocene of North America (most specimens being found in Colorado). The species were superficially cat or wolverine-like, with a flexible body long, and short limbs. Some species like "Oxyaena forcipata" where bigger with a body mass estimated to be 20kg. "Oxyaena" had a broad, low skull (20cm. long) with a long facial part and a massive lower jaw, while its body and tail were long and its five-toed limbs were short. - Carbon (from "coal") is a chemical element with symbol C and atomic number 6. It is nonmetallic and tetravalentmaking four electrons available to form covalent chemical bonds. Three isotopes occur naturally, C and C being stable, while C is a radioactive isotope, decaying with a half-life of about 5,730years. Carbon is one of the few elements known since antiquity. - Hyenas or hyaenas (from Greek "hyaina") are any feliform carnivoran mammals of the family Hyaenidae . With only four extant species, it is the fifth-smallest biological family in the Carnivora, and one of the smallest in the class Mammalia. Despite their low diversity, hyenas are unique and vital components of most African ecosystems. - Mammals are any vertebrates within the class Mammalia (from Latin "mamma" "breast"), a clade of endothermic amniotes distinguished from reptiles and birds by the possession of a neocortex (a region of the brain), hair, three middle ear bones and mammary glands. The sister group of mammals may be the extinct "Haldanodon." The mammals represent the only living Synapsida, which together with the Sauropsida form the Amniota clade. The mammals consist of the Yinotheria including monotrema and the Theriiformes including the theria. - The jaguar ("Panthera onca") is a big cat, a feline in the "Panthera" genus, and is the only extant "Panthera" species native to the Americas. The jaguar is the third-largest feline after the tiger and the lion, and the largest in the Americas. The jaguar's present range extends from Southwestern United States and Mexico across much of Central America and south to Paraguay and northern Argentina. Apart from a known and possibly breeding population in Arizona (southeast of Tucson) and the bootheel of New Mexico, the cat has largely been extirpated from the United States since the early 20th century. - The cougar ("Puma concolor"), also commonly known as the mountain lion, puma, panther, or catamount, is a large felid of the subfamily Felinae native to the Americas. Its range, from the Canadian Yukon to the southern Andes of South America, is the greatest of any large wild terrestrial mammal in the Western Hemisphere. An adaptable, generalist species, the cougar is found in most American habitat types. It is the second-heaviest cat in the New World, after the jaguar. Secretive and largely solitary by nature, the cougar is properly considered both nocturnal and crepuscular, although there are daytime sightings. The cougar is more closely related to smaller felines, including the domestic cat (subfamily Felinae), than to any species of subfamily Pantherinae, of which only the jaguar is native to the Americas. - The Eocene Epoch, lasting from , is a major division of the geologic timescale and the second epoch of the Paleogene Period in the Cenozoic Era. The Eocene spans the time from the end of the Paleocene Epoch to the beginning of the Oligocene Epoch. The start of the Eocene is marked by a brief period in which the concentration of the carbon isotope C in the atmosphere was exceptionally low in comparison with the more common isotope C. The end is set at a major extinction event called the "Grande Coupure" (the "Great Break" in continuity) or the EoceneOligocene extinction event, which may be related to the impact of one or more large bolides in Siberia and in what is now Chesapeake Bay. As with other geologic periods, the strata that define the start and end of the epoch are well identified, though their exact dates are slightly uncertain. - Patriofelis ( Latin : Father Cat ) was a large , cat - like oxyaenid of middle Eocene , some 45 million years ago in North America . It was around 1.2 to 1.8 metres ( 3.9 to 5.9 ft ) long , not including the tail , and weighted about 40 - 90 kg , making it around the same size as a modern cougar . It had short legs with broad feet , suggesting that it may have been a poor runner , but a quite good swimmer . As its close relative Oxyaena was a reasonably good climber , it is possible Patriofelis could climb as well ( Robbins 2006 ) . It is found in particular in the Bridger Basin of southwestern Wyoming and at John Day Fossil Beds National Monument , in the U.S. state of Oregon . - A federal republic is a federation of states with a republican form of government. At its core, the literal meaning of the word republic when used to reference a form of government means: "a country that is governed by elected representatives and by an elected leader (such as a president) rather than by a king or queen". - A U.S. state is a constituent political entity of the United States of America. There are 50 states, which are bound together in a union with each other. Each state holds administrative jurisdiction over a defined geographic territory, and shares its sovereignty with the United States federal government. Due to the shared sovereignty between each state and the federal government, Americans are citizens of both the federal republic and of the state in which they reside. State citizenship and residency are flexible, and no government approval is required to move between states, except for persons covered by certain types of court orders (e.g., paroled convicts and children of divorced spouses who are sharing custody). - A habitat is an ecological or environmental area that is inhabited by a particular species of animal, plant, or other type of organism. The term typically refers to the zone in which the organism lives and where it can find food, shelter, protection and mates for reproduction. It is the natural environment in which an organism lives, or the physical environment that surrounds a species population. - The Felinae are a subfamily of the family Felidae, which includes the genera and species listed below. Most are small to medium-sized cats, although the group does include some larger animals, such as the cougar and cheetah. The earliest records of the Felinae are ascribed to "Felis attica" from the late Miocene, 9 million years ago (Mya), of western Eurasia. - The John Day River is a tributary of the Columbia River, approximately long, in northeastern Oregon in the United States. Undammed along its entire length, the river is the third longest free-flowing river in the contiguous United States. There is extensive use of its waters for irrigation. Its course furnishes habitat for diverse species, including wild steelhead and Chinook salmon runs. However, the steelhead populations are under federal Endangered Species Act (ESA) protections, and the Chinook salmon have been proposed for such protection. - Pantherinae is a subfamily within the cat family Felidae named and first described by Reginald Innes Pocock in 1917. What object entity has the relation of 'taxon rank' with the subject 'patriofelis'? Choices: - class - division - family - form - genus - group - species - subfamily
A:
genus