First Record of Voltzialean Male Cone (Lutanthus) and Podocarpacean Female Cone (Rissikistrobus) from the Late Triassic of Argentina, Including New Plant Remains from the Paso Flores Formation

Abstract. New plant remains from the upper section of the Paso Flores Formation, at the Canadon de Pancho locality, western area of the Collon Cura River, Neuquen Province, Argentina, are herein described and illustrated. These are: Lutanthus ornatus, Rissikistrobus plenus, Rissikistrobus reductus, Rissikia media, Umkomasia sp., Sphenobaiera argentinae, Pseudoctenis spatulata, Taeniopteris crassinervis and Yabeiella brackebuschiana. Additionally, Baiera triassica, in replacement of the homonymous species previously identified in Argentina as Baiera taeniata, Ginkgo taeniata and Sphenobaiera taeniata, is herein described. Furthermore, species previously described for other localities in the Paso Flores Formation are recorded for the first time for the Quemquemtreu area of the Canadon Pancho locality. These species are: Asterotheca rigbyana, Marattiopsis muensteri, Cladophlebis kurtzii, C. indica, Dictyophyllum (Dictyophyllum) tenuifolium, Goeppertella stipanicicii, Dicroidium incisum, D. odontopteroides, D...