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In biogeography, a pantropical ("across the tropics") distribution is one which covers tropical regions of all of the major continents, i.e. in Africa, in Asia and in the Americas.[1] Examples include the plant genera Acacia and Bacopa.[2]

Neotropical is a zoogeographic term that covers a large part of the Americas, roughly from Mexico and the Caribbean, and southwards (including cold regions in southernmost South America).

Palaeotropical refers to geographical occurrence. For a distribution to be palaeotropical a taxon must occur in tropical regions on both continents in the Old World, i.e. in Africa and Asia.

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  1. ^ Andrés Moreira-Muñoz (2010). "Asteraceae: Chile's richest family". Plant Geography of Chile. Plant and Vegetation 5. Springer. pp. 221–248. doi:10.1007/978-90-481-8748-5_8. ISBN 978-90-481-8747-8. 
  2. ^ Andrés Moreira-Muñoz (2010). "Geographical relations of the Chilean flora". Plant Geography of Chile. Plant and Vegetation 5. Springer. pp. 87–128. doi:10.1007/978-90-481-8748-5_3. ISBN 978-90-481-8747-8.