Template:Zangerl, 1979

• Zangerl, R. 1979: New Chondrichthyes from the Mazon Creek fauna (Pennsylvanian) of Illinois. Pp. 449-500 in Nitecki, M.H. (ed.), Mazon Creek fossils. Academic Press, New York, San Francisco & London. ISBN 0125196504 [not seen]  
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