Sample Latitude Longitude Pann(mmyr-1) Vegitation zone [27] Local vegitation Potential reconstructed biome JM7 14°19′48.00˝N 13°10′12.00˝E 226 Sahel  Acaciawooded  grassland edphic grassland STEP JM6 14°16′12.00˝N 13°34′48.00˝E 250 Sahel  Acaciawooded  grassland Lacustrine mud STEP JM5 13°41′60.00˝N 13°25′12.00˝E 265 Sahel  Acaciawooded  grassland Lacustrine mud SAVA KK1 13°48′50.80˝N 13°27′27.20˝E 250 Sahel  Acaciawooded  grassland Lacustrine mud SAVA JM4 13°22′48.00˝N 14°4′48.00˝E 350 Sahel Acaciawooded  grassland Lacustrine mud SAVA JM3 13°30′0.00˝N 14°15′0.00˝E 340 Sahel  Acaciawooded  grassland Lacustrine mud SAVA JM2 13°25′12.00˝N 14°46′12.00˝E 327 Sahel  Acaciawooded  grassland Lacustrine mud SAVA JM1 13°1′48.00˝N 14°37′48.00˝E 450 Sahel  Acaciawooded  grassland and edaphic grassland Lacustrine mud SAVA Chan 12°38′23.40˝N 14°49′39.90˝E 500 Sahel  Acaciawooded  grassland and edaphic grassland River mud SAVA JMMCH 12°30′0.00˝N 14°54′0.00˝E 600 Sahel  Acaciawooded  grassland and edaphic grassland Mosaic of edaphic grassland and Sahel Acacia savanna SAVA JMA 12°25′12.00˝N 15°4′48.00˝E 600 Sahel  Acaciawooded  grassland and edaphic grassland and close to the limit of sudanian undifferentiated woodland Mosaic of edaphic grassland and Sahel acacia savanna (Sahelian-SudanianZone) SAVA JMD 13°49′48.00˝N 14°41′60.00˝E 300 Sahel  Acaciawooded  grassland steppe STEP JMC 13°34′48.00˝N 14°46′48.00˝E 330 Sahel  Acaciawoodland grassland and edaphic grassland edphic grassland STEP JMB 12°46′12.00˝N 14°45′0.00˝E 500 Sahel Acacia woodland grassland and edaphic grassland Sahel Acacia savanna SAVA

Table 2: Modern samples characterization: coordinates (latitude and longitude), Pann values (mm yr−1), vegetation zone [27], local vegetation [54] and potential reconstructed biome (this paper).