The institutional contacts between the Quaternary scientists from Portugal and Spain were established during the X International INQUA Congress held in Birmingham in 1977, thanks to the initiative of Miguel Ramos one of the founding members of GTPEQ - Grupo de Trabalho Português para o Estudo do Quaternário. The will of cooperation was reconfirmed during the V National Meeting of Grupo Español de Trabajo de Cuaternario (now AEQUA – Spanish Quaternary Association) and in consequence the first joint meeting  I REQUI was proposed proposed for organization and held in Lisbon in 1985. During the four following decades 8 REQUI’s were organized. The proceedings of these meetings may be downloaded from the links below:

1º. Lisboa 1985

2º. Madrid 1989

3º. Coimbra 1993

4º. Huelva 1997

5º. Lisboa 2001 / I, CQPLI

6º. Gibraltar 2005

7º. Faro 2009