What is Tertiary?

  • (adj): Coming next after the second and just before the fourth in position.
    Synonyms: third, 3rd
    See also — Additional definitions below


Tertiary is an officially deprecated but still widely used term for a geologic period from 65 million to 2.6 million years ago, a time span that lies between the superseded Secondary period and the Quaternary. The Tertiary is no longer recognized as a formal unit by the International Commission on Stratigraphy, its traditional span being divided between the Paleogene and Neogene Periods of the Cenozoic Era.

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Some articles on Tertiary:

Economic Sector
... be workers in the secondary sector.) Tertiary Involves the supplying of services to consumers and businesses, such as baby-sitting, cinema and banking ... A shopkeeper and an accountant would be workers in the tertiary sector.) In the 20th century, it began to be argued that traditional tertiary services ...
Tertiary - Climate
... Climates during the Tertiary slowly cooled, starting off in the Paleocene with tropical-to-moderate worldwide temperatures and ending before the first extensive glaciation at the start ...
Tertiary Entrance Rank - Calculation of The TER in Western Australia
... The TER was calculated by the Tertiary Institutions Service Centre (TISC) for students who successfully completed the Western Australian Certificate ... revised for from 2005 to 2009, the process for calculating the TER for WA students was changed for tertiary entry in 2009 ... In 2008, a Tertiary Entrance Aggregate (TEA) was calculated using the sum of the four highest Course of Study Levels of Achievement ...
Palaeognathae - Biogeography - Tertiary Radiation Hypothesis
... In this emphasis on the Tertiary, rather than Cretaceous period, as the time of basal divergences between neornithines, he follows Olson ... Lithornithiformes, a group of flying birds that were common in the Tertiary of the northern hemisphere, were also paleognaths ...
Tertiary Entrance Exam
... the new examination and curriculum system that has replaced the Tertiary Entrance Exam (TEE), see WACE (Western Australian Certificate of Education) ... The Tertiary Entrance Examination (TEE) was the standard academic examination for secondary students completing their twelfth year of schooling in ... The exam results were used to determine the Tertiary Entrance Rank and the Tertiary Entrance Score ...

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Famous quotes containing the word tertiary:

    Morality is a venereal disease. Its primary stage is called virtue; its secondary stage, boredom; its tertiary stage, syphilis.
    Karl Kraus (1874–1936)