Editing Biogeographic realm (section)

===Morrone biogeographic kingdoms===
Following the nomenclatural conventions set out in the [[International Code of Area Nomenclature]], Morrone{{r|Morrone2015}} defined the next biogeographic kingdoms (or realms) and regions:
* Holarctic kingdom Heilprin (1887)
** Nearctic region Sclater (1858)
** Palearctic region Sclater (1858)
* Holotropical kingdom Rapoport (1968)
** Neotropical region Sclater (1858)
** Ethiopian region Sclater (1858)
** Oriental region Wallace (1876)
* Austral kingdom Engler (1899)
** Cape region Grisebach (1872)
** Andean region Engler (1882)
** Australian region Sclater (1858)
** Antarctic region Grisebach (1872)
* Transition zones: 
** Mexican transition zone (Nearctic–Neotropical transition)
** Saharo-Arabian transition zone (Palearctic–Ethiopian transition)
** Chinese transition zone (Palearctic–Oriental transition zone transition) 
** Indo-Malayan, Indonesian or Wallace's transition zone (Oriental–Australian transition)
** South American transition zone (Neotropical–Austral transition)