Becker, Martin A., Rebecca B. Chamberlain, Harry M. Maisch, Alex Bartholomew, et John A. Chamberlain. « Trilobites from the Rickard Hill Facies of the Saugerties Member of the Schoharie Formation, Eastern New York (upper Emsian and Lower Devonian): A Case Study in Taphonomy and Sequence Stratigraphy from Glacial Erratics ». Atlantic Geoscience 53 (août 27, 2017): 269–284. Consulté le novembre 23, 2024. https://journals.lib.unb.ca/index.php/ag/article/view/25361.