TY - JOUR A1 - Siver, P. A. A1 - Bishop, J. A1 - Lott, A. A1 - Wolfe, A. P. T1 - Heteropolar eunotioid diatoms (Bacillariophyceae) were common in the North American Arctic during the middle Eocene JO - J. Micropalaeontol. J1 - JM VL - 34 IS - 2 SP - 151 EP - 163 Y1 - 2015/07/01 PB - GSL Publishing SN - 2041-4978 UR - https://jm.copernicus.org/articles/34/151/2015/ L1 - https://jm.copernicus.org/articles/34/151/2015/jm-34-151-2015.pdf DO - 10.1144/jmpaleo2014-005 ER -