Al-Wosabi, Mohammed, Mohammed El-Anbaawy, and Khalid Al-Thour. 2017. “Middle Jurassic–Early Cretaceous Foraminiferal Biozonation of the Amran Group, Eastern Sana’a Basin, Yemen”. Geologos 23 (2):75-87. https://doi.org/10.1515/logos-2017-0010.