Field, Brad D., Martin P. Crundwell, James P. Kennett, Peter R. King, Craig M. Jones, and George H. Scott. 2018. “The Early Middle Miocene Paleoenvironmental Setting of New Zealand”. Revista Mexicana De Ciencias Geológicas 19 (3):242-51. https://rmcg.geociencias.unam.mx/index.php/rmcg/article/view/971.