Siddiqis in the Horn of Africa Siddiqis in the Horn of Africa Siddiqi () is a Muslim family name, found in the Horn of Africa, the Middle East and South Asia. Sheikh is an additional title used occasionally by Siddiqis to signify noble Arab heritage. According to tradition, people having surname "Siddiqi" are offspring of Abu Bakr Siddique (), the first Khalifa (Caliph) and an early companion and friend of the Islamic prophet, Muhammad. People claiming Siddiqi descent can be found in Djibouti, Eritrea, Somalia and Ethiopia. However, representatives in these countries are not referred to as Siddiqi, but are instead known by various local names.
Geology of Somalia and island arcs. In the Early Jurassic, the supercontinent Gondwana, which included Africa, began to break apart. The marine transgression of the Tethys Ocean flooded large parts of East Africa and Arabia and new sedimentary rock units were deposited. In the west of Somalia, the Cretaceous at the end of the Mesozoic brought crustal upwarping, which is preserved in the Yesomma Sandstone. Two major sedimentary basins began to form in Somalia during the Mesozoic, the Somali Coastal Basin and the Luuq-Mandera Basin, both filled with up to five kilometers of sedimentary rock. The basins formed due to the movements of