History of the Jews in Africa community. They formed the Ethiopian North Shewa Zionist Organization in an attempt to save their Jewish identity. This group identifies as the "Falashmura." As they do not have reliable proof of Jewish ancestry, Israeli religious authorities and other religious Jewish communities require them to complete a formal conversion to be recognized as Jews. Those who do so are considered converts. The Yibir are a tribe that lives in Somalia, eastern Ethiopia, Djibouti, and northern Kenya. Though they have been Muslim for centuries, some of them assert they are descendants of Hebrews who arrived in the Horn of Africa long before
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