Using Multiple Environmental Proxies to Determine Degree of Marine Influence and Paleogeographical Position of the Joggins Fossil Cliffs, UNESCO World Heritage Site

Research at the Joggins Fossil Cliffs reveals that marine influence diminished over time during the Pennsylvanian period. Sedimentologic and paleontologic analyses of interbedded limestone deposits, containing marine organisms like ostracodes and bivalves, indicate open marine conditions in older sections transitioning to fluvial and coastal environments higher up. This finding challenges assumptions about the site's paleogeographical position and suggests that Cordaites trees may not represent the earliest mangroves. The study used multiple environmental proxies to track changes in marine influence, providing new insights into the site's complex depositional history.

GREY, M., PUFAHL, P. K., & AZIZ, A. A. (2011). USING MULTIPLE ENVIRONMENTAL PROXIES TO DETERMINE DEGREE OF MARINE INFLUENCE AND PALEOGEOGRAPHICAL POSITION OF THE JOGGINS FOSSIL CLIFFS, UNESCO WORLD HERITAGE SITE. Palaios, 26(5), 256–263. https://doi.org/10.2110/palo.2010.p10-118r