Abderaz Formation is one of the Upper Cretaceous formations in the KopetDagh sedimentary basin. A stratigraphic section from the mentioned formation is
selected for detailed systematic description with regard to echinoids. Numerous
well preserved representatives of the families Mircrasteridae wright, 1857 and
Echinocorythidae Lambert, 1920 are described from the Ghaleh-Zoo stratigraphic
section in the Kopet-Dagh sedimentary basin, northwest of Shirvan township (NE
Iran). The age of the fossil assemblage is determined as Turonian-Santonian based
on four echinoid species: Micraster (Micraster) coranguinum Leske, 1778,
Micraster (Micraster) cortestudinarium (Goldfuss, 1829), Echinocorys gravesi
(Agassiz & Desor, 1847) and Echinocorys ex gr. scutata Leske, 1778.
