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Hyaenodonta

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Extinct order of mammalsHyaenodonta ("hyena teeth") is an extinct order of mostly carnivorous placental mammals of clade Pan-Carnivora from mirorder Ferae. Hyaenodonts were important mammalian predators that are believed to have arose either in the Late Cretaceous or Early Paleocene within Europe or North America, and persisted well into the Late Miocene. Hyaenodonts were found across Africa, Eurasia, and North America throughout the Cenozoic and occupied a variety of ecosystems, from forests to coastlines.

FeraeFeraeFerae ( , Latin:, "wild beasts") is a mirorder of placental mammals in grandorder Ferungulata, that groups together clades Pan-Carnivora (that includes carnivorans and their fossil relatives, such as hyaenodonts) and Pholidotamorpha (pangolins and their fossil relatives).North AmericaNorth AmericaNorth America is a continent in the Northern and Western hemispheres. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Caribbean Sea, and to the south and west by the Pacific Ocean. North America covers an area of around 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of Earth's land area and 4.8% of its total surface area.EuropeEuropeContinentEurope is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the to the south, and Asia to the east. Europe shares the landmass of Eurasia with Asia, and of Afro-Eurasia with both Africa and Asia.AfricaAfricaContinentAfrica is the world's second-largest and second-most populous continent after Asia. At about 30.3 million km (11.7 million square miles) including adjacent islands, it covers around 20% of Earth's land area and 6% of its total surface area. With nearly 1.4 billion of the world population, Africa's population is the youngest among the continents; the median age in 2012 was 19.7, when the worldwide median age was 30.4.HyenaHyenaFamily of carnivoran mammalsAardwolf, smallest member of the hyena family, skeleton (Museum of Osteology)Hyenas or hyaenas ( ; from Ancient Greekὕαινα, hýaina) are feliformcarnivoran mammals belonging to the familyHyaenidae (Latin pronunciation:). With just four extant species (each in its own genus), it is the fifth-smallest family in the order Carnivora and one of the smallest in the class Mammalia.EurasiaEurasiaEurasia ( , also UK: ), is the largest continental area on Earth, comprising all of Europe and Asia. According to some models of the world, physio-graphically, Eurasia is a single continent. The concept of Europe and Asia as distinct continents dates back to antiquity, and is largely cultural, but their borders have historically been subject to change. For example, the ancient Greeks originally included Africa in Asia but classified Europe as separate land.PlacentaliaPlacentaliaPlacentalia () is one of the three extant subdivisions of the class Mammalia, the other two being Monotremata and Marsupialia. Placentalia contains the vast majority of extant mammals, which are partly distinguished from monotremes and marsupials in that the fetus is carried in the uterus of its mother to a relatively late stage of development.Late CretaceousLate CretaceousSubdivision of the Cretaceous according to the ICS, as of 2024.Vertical axis scale: Millions of years agoEtymologyChronostratigraphic nameUpper CretaceousGeochronological nameLate CretaceousName formalityFormalUsage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitEpochStratigraphic unitSeriesTime span formalityFormalLower boundary definitionFAD of the Planktonic ForaminiferRotalipora globotruncanoidesLower boundary GSSPMont Risoux, Hautes-Alpes, France44°23′33″N5°30′43″E / 44.3925°N 5.5119°E / 44.3925; 5.5119Lower GSSP ratified2002Upper boundary definitionIridium enriched layer associated with a major meteorite impact and subsequent K-Pg extinction eventUpper boundary GSSPEl Kef Section, El Kef, Tunisia36°09′13″N8°38′55″E / 36.1537°N 8.6486°E / 36.1537; 8.6486Upper GSSP ratified1991The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the CretaceousPeriod is divided in the geologic time scale.Late MioceneLate MioceneThe Late Miocene (also known as Upper Miocene) is a sub-epoch of the Miocene epoch made up of two stages: the Tortonian and Messinian. It lasted from 11.63 Ma (million years ago) to 5.333 Ma. BiologyThe gibbons (family Hylobatidae) and then the orangutans (genus Pongo) were the first groups to split from the line leading to the hominins, including humans, then gorillas (genus Gorilla), and finally the chimpanzees (genus Pan).ExtinctionExtinctionTermination of a species' lineageThe thylacine (Thylacinus cynocephalus) is an example of a recently extinct species.Palaeotherium is an example of an extinct genus that is only recorded from fossil records before the existence of hominids.Extinction is the termination of a species via the death of its last member. A taxon may become functionally extinct before the death of its last member if it loses the capacity to reproduce and recover.DanianDanianSubdivision of the Paleogene according to the ICS, as of 2024.Vertical axis scale: Millions of years agoFormerly part ofTertiaryPeriod/SystemEtymologyName formalityFormalUsage informationCelestial bodyEarthRegional usageGlobal (ICS)Time scale(s) usedICS Time ScaleDefinitionChronological unitAgeStratigraphic unitStageTime span formalityFormalLower boundary definitionIridium enriched layer associated with a major meteorite impact and subsequent K–Pg extinction eventLower boundary GSSPEl Kef Section, El Kef, Tunisia36°09′13″N8°38′55″E / 36.1537°N 8.6486°E / 36.1537; 8.6486Lower GSSP ratified1991Upper boundary definitionOnset of sea-level drop and carbon isotope shiftUpper boundary GSSPZumaia Section, Basque Country, Spain43°17′57″N2°15′40″W / 43.2992°N 2.2610°W / 43.2992; -2.2610Upper GSSP ratified2008The Danian is the oldest age or lowest stage of the Paleocene Epoch or Series, of the Paleogene Period or System, and of the Cenozoic Era or Erathem.

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