Carlton, Robert L. (2018), Carlton, Robert L. (ed.), "M", A Concise Dictionary of Paleontology, Cham: Springer International Publishing, pp. 165–184, doi:10.1007/978-3-319-73055-4_13, ISBN978-3-319-73055-4, retrieved 2025-01-11
Carlton, Robert L. (2018), Carlton, Robert L. (ed.), "M", A Concise Dictionary of Paleontology, Cham: Springer International Publishing, pp. 165–184, doi:10.1007/978-3-319-73055-4_13, ISBN978-3-319-73055-4, retrieved 2025-01-11