6, Gadow (1893) proposed 4. Philip Sclater (1858) and Alfred Wallace (1876) identified the main zoogeographic regions of the world used today: Palaearctic, Aethiopian (today Afrotropic), India (today Indomalayan), Australasian, Nearctic and Neotropical. Marine regionalization began with Ortmann (1896). In a similar way to geobotanic divisions, our planet is divided in zoogeographical (or faunal) regions (further divided as provinces, territories and districts), sometimes including the categories Empire and Domain. The current trend is to classify the floristic kingdoms of botany or zoogeographic regions of zoology as biogeographic realms. Following, some examples of regionalizations: Sclater (1858) Creatio Palaeogeana I. Regio Palaearctica II. Regio Aethiopica III. Regio Indica IV. Regio Australiana Creatio Neogeana V. Regio Nearctica VI. Regio Neotropica Huxley (1868) Huxley (1868) scheme: Arctogea Nearctic province Palaearctic province Ethiopian province Indian province Notogea Austro-Columbia province (= Neotropical) Australasia province (= Australian; Eastern Palaeotropical) Wallace (1876) Palaearctic region Ethiopian region Oriental region Australian region Neotropical region Nearctic region Trouessart (1890) Scheme by Trouessart (1890): Arctic region Antarctic region Palearctic region Nearctic region Ethiopian region Oriental region Neotropical region Australian region Darlington (1957) First scheme: Realm Megagea (Arctogea): the main part of the world 1. Ethiopian Region: Africa (except the northern corner), with part of southern Arabia 2. Oriental Region: tropical Asia, with associated continental islands 3. Palearctic Region: Eurasia above the tropics, with the northern corner of Africa 4. Nearctic Region: North America, excepting the tropical part of Mexico Realm Neogea 5. Neotropical Region: South and Central America with the tropical part of Mexico Realm Notogea 6. Australian Region: Australia, with New Guinea, etc. Second scheme: Climate-limited regions 1. Palearctic Region 2. Nearctic Region Main regions of the Old World tropics 3. Oriental Region 4. Ethiopian Region Barrier-limited regions 5. Neotropical Region 6. Australian Region See also Animal geographies Fauna Animals Zoology Léon Croizat References Bibliography Bodenheimer, F.S. (1935). Animal life in Palestine. An introduction to the problems of animal ecology and zoogeography. L. Mayer: Jerusalem. 506 p., . Ekman, Sven (1953). Zoogeography of the sea. London, Sidgwick and Jackson. 417 p. External links Biogeography