@article{bei_1852.1669, title = {Polyptychodon aus Schlesien [Briefliche Mitteilung an E. Beyrich]}, author = {Beinert, Carl }, year = {1852}, journal = {Zeitschrift der deutschen Geologischen Gesellschaft (Wilhelm Hertz) Berlin}, volume = {4}, pages = {529–531}, url = {https://biodiversitylibrary.org/page/34886351} }