Gastropods from some early Devonian limestones of the Walhalla Synclinorium, Central Victoria

Seventeen gastropods from Devonian limestones at Marble Creek (also known as Toongabbie), Deep Creek and Loyola within the Walhalla synclinorium are described.These include four new forms: Platyceras (Platyceras) mansfieldense and P. (Praenatica) sp. A. from Loyola, and P. {Platyceras) sp. A. and P. (Orthonychia) sp. A. from Marble Creek.The other described forms are all platyceratids except Tremanotus cyclocostatus and Michelia sp. from Marble Creek, Oriostoma sp.n., and an indeterminate turbiniform gastropod from Deep Creek and Scalaetrochus lindstromi from Loyola.Tropidodiscus centrifugalis and ITemnodiscus pharetroides from the mudstones at Loyola are also redescribed.The gastropod faunas of the limestones are dominated by coprophagic platyceratid gastropods and constitute further examples of this widely known crinoid-gastropod association.helpful comments, criticisms and discussions;