A recent paper on the Pennant Formation (Wood et al. 2022), the first for over 20 years, presents a major reinterpretation of its fluvial channel deposits. It suggests that the Pennant Formation was mainly deposited in anastomosing channels with an average depth of only 2.5 m. This is profoundly different from the interpretation of Jones (1977) that they quote extensively, which concluded that the Pennant Sandstone Formation was deposited by a large, braided river system where channel fills are mostly around 10 m thick, exceptionally 15 m. In our view, the authors have misread the field data, have...

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