This supplement contains materials for a model can be viewed in GPlates (http://www.gplates.org/). Files included: Overture_MV_v2.gproj MandaraGTS2020.rot Mandara_COB.gpml Mandara_Coastlines.gpmlz choudhuri_basement.gmt nemcok_etal2016_faults.gmt ONeill_etal_2005_hotspots.gpml Doubrovine_etal_2012_hotspots.gpml flowlines.gpml indicative_plate_boundaries.gpml To load these datasets in GPlates, unpack all files to a single directory and then do the following: 1. Open GPlates 2. Pull down the GPlates File menu and select the operation Open Project 3. Choose the file Overture_MV_v2.gproj. 4. Click Open For more information, read the GPlates manual which can be downloaded from www.gplates.org or http://www.earthbyte.org/Resources/earthbyte_gplates.html Graeme Eagles, January 2023