Based on the study of Brachiopods
and Conodents a stratigraphic and relative
age determination research has been
worked out on the Paleozoic sediments,
located in south of Bojnod,Northeas
of Iran.For the first time the sediments
of upper Ordevician have been
recognized in Iran, based on some index
fossils of Brachiopods and Conodonts.
Fourteen species of upper Ordovician
Brachiopods and 12 species of Ordovician
Conodonts, including their distribution
have been described in this Study.
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