INVERTEBRATE TRACE FOSSILS AND AGGLUTINATED FORAMINIFERA AS INDICATORS OF MARINE INFLUENCE WITHIN THE CLASSIC CARBONIFEROUS SECTION AT JOGGINS, NOVA-SCOTIA, CANADA

The sea cliffs at Joggins, Nova Scotia, are the most extensive and con tinuous Carboniferous section in eastern North America. Although the s ection has been considered to have formed within a nonmarine depositio nal basin, paleobiological information indicates that parts of the sec tion were deposited in brackish water. The occurrence of a trace-fossi l assemblage, which includes Cochlichnus, Kouphichnium, and Treptichnu s, is part of an assemblage of biogenic structures that apparently ref lects paleodeposition within fluvial systems that may have experienced distal marine influences. Presence of agglutinated foraminifera chara cteristic of brackish-water environments supports this interpretation. This information provides new evidence of brackish-water conditions a t Joggins such as those now being widely recognized in other Carbonife rous coal-bearing sections.