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The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammals – the eutherians in the Northern Hemisphere and the metatherians (marsupials, now mainly restricted to Australia and to some extent South America) in the Southern Hemisphere. The extinction of many groups allowed ...
Figure 1:In mammals, the quadrate and articular bones are small and part of the middle ear; the lower jaw consists only of dentary bone.. While living mammal species can be identified by the presence of milk-producing mammary glands in the females, other features are required when classifying fossils, because mammary glands and other soft-tissue features are not visible in fossils.
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Definition; Chronological unit ... It is the second and most recent epoch of the Neogene Period in the Cenozoic Era. ... (the largest land mammals of the Pliocene ...
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An approximate timescale of key Cenozoic events. Vertical axis scale: Millions of years ago The European Land Mammal Mega Zones (abbreviation: ELMMZ , more commonly known as European land mammal ages or ELMA ) are zones in rock layers that have a specific assemblage of fossils ( biozones ) based on occurrences of fossil assemblages of European ...
The North American land-mammal-age system was formalized in 1941 as a series of provincial land-mammal ages. [2] The system was the standard for correlations in the terrestrial Cenozoic record of North America and was the source for similar time scales dealing with other continents.
View history; Tools. Tools. ... Cenozoic mammals of the Cenozoic Era in Europe ... Pages in category "Cenozoic mammals of Europe"