Falcon-Lang, Howard J. “A Macroneuropteris Scheuchzeri Tree Preserved in Growth Position in the Middle Pennsylvanian Sydney Mines Formation, Nova Scotia, Canada”. Atlantic Geoscience 45 (June 3, 2009): Pages 74 – 80. Accessed December 2, 2023. https://journals.lib.unb.ca/index.php/ag/article/view/atlgeol.2009.004.