An arborescent lycopsid stem fragment from the Palliser Formation (Famennian) carbonate platform, southwestern Alberta, Canada, and its paleogeographic and paleoclimatic significance

A partially silicified stem fragment of an arborescent lycopsid, tentatively identified as Leptophloeum rhombicum, is documented from peritidal carbonates in the Palliser Formation (Upper Devonian; Famennian) of southwestern Alberta. An unlikely inhabitant of these tidal flats, the log must have rafted in from a relatively nearby land area. The most probable sources are the Kootenay island arc to the paleo-northwest and hypothetical Montania to the southwest. The specimen is evidence that either or both these equatorial areas had a humid paleoclimate and vegetated coastal marshes and swamps.The accepted manuscript in pdf format is listed with the files at the bottom of this page. The presentation of the authors' names and (or) special characters in the title of the manuscript may differ slightly between what is listed on this page and what is listed in the pdf file of the accepted manuscript; that in the pdf file of the accepted manuscript is what was submitted by the author