Students Collection, Concord, Ry. Dimorthus subquadrata. 10 feet above Hebertella inesculpta zone and in lime material brought down from above. along RR. C. Phlyochotrema capax. Begins where Dalmanella becomes common along Sycamore creek, R, be- comes common in Dimorthus subquadrata zone C Hebertella inesculpta rather C in several layers in a (horizon) zone 1 foot thick at level of RR track C, Protarea vetusta. Several well pre- served specimens in Dimorthus subquadrata zone. Plectambrites cericea. Very abundant in Dimorthus subqua: drata zone. Stephanona serrata. Common at a measured level above Dal- manella zone, Sparingly in Dimorthus subquadrata zone. 39 Waynesville Limer half. Concord. Ry, Prasopora unipitalis. Ceramypnella granulosa Bythospa arcki Nildanmella tenua Patrima varians Callpora submodra Mistrorpella quadrata Amplexana spatalva Perlipera decipiens