🇲🇷 Mauritania · Submerged site
Kumbi Saleh – Ghana Empire Harbour City, Mauritania
Ghana to Almoravid (c. 500–1200 CE) · Soninke Ghana / Almoravid / Wagadu
Ghana Empire caravan harbour 300×200 m dune-sealed at Kumbi Saleh – moated stone town 15 ha.
🇲🇷 Mauritania · Submerged site
Richat Structure – Second Richat Semsiyat Dome Pseudo-Extension
Pseudoarchaeology (2018–present) · Pseudoarchaeology (Richat extension)
Second Richat Semsiyat dome pseudo-harbour at 400 m asl – sandstone dome fracture south of main eye.