Special issue article Extended urbanization in and from Brazil Rodrigo Castriota and Jo~ ao Tonucci Federal University of Minas Gerais, Brazil Abstract The notion of planetary urbanization has recently mobilized different strands in the field of urban studies and has generated extensive debates. This emerging research agenda aims to revise inherited concepts and produce a new vocabulary of urbanization through the construction of an ex-centric perspective that dislocates the focus of analysis from its conventional center: the city. The idea of extended urbanization is thus an imperative concept for it operationalizes this theoretical decentering and permits the exploration of urban questions beyond city-centrism, while encompassing urban agglomerations. This article discusses the conception of extended urbanization. We examine its vital insertion into the contemporary agenda of planetary urban- ization and present its original formulation in and from Brazil, developed by Roberto Monte-M or in the 1980s. In order to foster a productive dialogue between these formulations, we discuss the contradictions embedded within the process of extended urbanization and highlight Monte-M or’s main theoretical and empirical contributions – particularly regarding urban politics and extended citizenship in the Brazilian Amazon. We contend that extended urbanization as formulated in and from Brazil offers important developments and goes far beyond a mere interesting empirical case in and from Brazil. Instead, it illuminates contemporary questions regarding planetary urbanization. Keywords Extended urbanization, planetary urbanization, Brazilian Amazon, Henri Lefebvre, Roberto Monte-M or Introduction The notion of planetary urbanization has recently mobilized different strands in the field of urban studies and has generated extensive debates. The many different reactions to these Corresponding author: Rodrigo Castriota, Cedeplar-FACE, Universidade Federal de Minas Gerais, Av. Anto ˆ nio Carlos, 6627, sl. 2100, CEP 31270- 901, Belo Horizonte, Minas Gerais, Brazil. Email: castriota@cedeplar.ufmg.br Environment and Planning D: Society and Space 2018, Vol. 36(3) 512–528 ! The Author(s) 2018 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav DOI: 10.1177/0263775818775426 journals.sagepub.com/home/epd