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• Development of plant diversity through the time with interest on the Permian to the late Cretaceous.
• Classification and interpretation of the floral remains to reconstruct the paleoenvironment and organic components.
• The fossil charcoal on Permian as indicator of Paleo-wildfires and its reflection on the atmospheric gas component in that time.
• Description and interpretation of some lithological boundaries on Jordanian Stratigraphic column which serve the ground water, mining, and oil& gas sectors in Jordan.

Geographically my work is currently focused Jordan, middle east, Central Europe, and parts of Gondwana (i.e. Brazil, India, S-Africa). These interests were shared for many years with colleagues from Jordan, Iraq, Egypt, Germany, Holland, and England. ​