Brett, Carlton, Pratt, Brian, Landing, E., 2019. NORTH AMERICAN COMMISSION ON STRATIGRAPHIC NOMENCLATURE Report 13 — Revision of Articles 25-27 of the North American Stratigraphic Code to Allow Formal Submembers. Stratigraphy 16, 279-281. doi:10.29041/strat10.29041/strat.16.410.29041/strat.16.4.279-281

Brett, Carlton, Pratt, Brian, Landing, E., 2018. NORTH AMERICAN COMMISSION ON STRATIGRAPHIC NOMENCLATURE Note 68 - Application for Addition of Submembers to the North American Stratigraphic Code: A Case for Formalizing Lithostratigraphic units of Intermediate Rank. Stratigraphy 15, 103-108. doi:10.29041/strat.15.2.103-108