TY - JOUR A1 - Wicander, R. T1 - Middle Devonian acritarch biostratigraphy of North America JO - J. Micropalaeontol. J1 - JM VL - 3 IS - 2 SP - 17 EP - Y1 - 1984/09/01 PB - GSL Publishing SN - 2041-4978 UR - https://jm.copernicus.org/articles/3/17/1984/ L1 - https://jm.copernicus.org/articles/3/17/1984/jm-3-17-1984.pdf DO - 10.1144/jm.3.2.19 ER -