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Query: classification: "38.22"

Author	A.A. El-Khayal
Title	Some Silurian (Llandovery) monograptids from Saudi Arabia
Journal	Scripta Geologica
Volume	80
Year	1985
Pages	15-22
ISSN	0375-7587
Abstract	Three species of Monograptus are recognized from Qusayba, Al-Qasim Province, Saudi Arabia. The Qusayba Shales Member of the Tabuk Formation in central Saudi Arabia contains M. decipiens decipiens, M. ex gr. barrandei and M. elongatus, associated with other graptolites. This assemblage is indicative of the Monograptus convolutus Zone. Therefore the lower part of the Qusayba Shales are believed to be correlative to the convolutus Zone (Llandovery) of Great Britain.
Classification	38.22
Document type	article
Download paper	http://www.repository.naturalis.nl/document/148826