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Becker, House & Bockwinkel | 
2002 | 
Famennian ammonoid zones of the eastern Anti-Atlas (southern Morocco). [R.T.Becker, M.R.House, J.Bockwinkel, V.Ebbighausen & Z.S.Aboussalam].	 
Münsteraner Forschungen, Geologie und Paläontologie, 93: 159-205, 10 fig., 6 pl., Münster.	 
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