I do not know papers on Mozambique, but https://www.researchgate.net/profile/Annette_Goetz/ has some publications on the Permian Karoo Basin, South Africa and should be able to give you more references.
Here is a reference you may find useful or at least the references contained in it:
Cairncross (2001) An overview of the Permian (Karoo) coal deposits of southern Africa. African Earth Sciences vol 33, pg 529-562
There are some papers which deal with Permian palynomorphs. since palynomorphs are global distribution, you can use palyno data of different stratigraphic sections.
link 1: http://paleobotany.bio.ku.edu/taylorPDFs%5C[1991]%20Farabee%20et%20al.-Late%20Permian%20palynomorphs.pdf
link 2: http://www.nsf.gov/geo/plr/antarct/ajus/nsf9828/9828html/a2.htm
link 3: http://www.ga.gov.au/corporate_data/14505/Rec1991_095.pdf