Já passaram dois meses, mas não podemos deixar de referir a presença do registo paleobotânico português no Encontro Anual da Geological Society of America (GSA's 125th Anniversary Annual Meeting & Exposition), que este ano decorreu nos dias 27 a 30 de Outubro de 2013 em Denver (Colorado, EUA). A Paleobotânica Portuguesa teve como embaixadores o investigador Pedro Correia do Centro de Geologia da Universidade do Porto e colaboradores, que apresentaram nova informação sobre um novo grupo de plantas do Carbónico Superior da Bacia do Douro.
Deixamos aqui o resumo desta comunicação (em inglês):
Aphlebia Presl 1838 is described in literature as a fossil macroflora commonly found in paleobiological-paleoecological interaction with Carboniferous ferns. Aphlebia is normally connected along the main axis of the fern fronds and has a variety of irregular and pinnatifid leaves which display incomplete to little visible veins that are typically parallel. Its reproduction processes are unknown. In this study, a new Aphlebia group constituted potentially by a new species was found in the Douro Carboniferous Basin (Lower Gzhelian, Upper Pennsylvanian; Portugal) with reproductive structures preserved and documented in compression-impression material. These structures like look sporangia which are typical of the Carboniferous ferns. These new records indicate that Late Carboniferous Aphlebia may have developed an autonomous life similar to the ferns that was probably driven by the climatic changes that occurred within Central Tropical Pangea during the Permian-Carboniferous. In this presentation, we also will discuss the problems of the relationship between tectonic deformation and the fossilization state of the study material.