Book aims to bridge the gap in the contemporary Arab culture in the area of micro-fossils; with a focus on the fossils of the Arabian Peninsula is expected to benefit students at the university level in particular. The book consists of six chapters, the first chapter is an overview foundations give the reader an overview on the holy Althfr Althfr environments and the importance of studying fossils, the second chapter devoted to the study of geological priorities of importance is ((Alforamenfita and Alradiolria)) and the third chapter is devoted to discuss the ((Alaustrakuda) ) and the classification. The Clove IV addresses both the algae, debentures or Aldioanomat. Chapter V deals with the fossils of plant root and spread, Chapter VI allotting to search for ((Alkonodont)).