ESTÍPITE DE PALMERA EN EL CAMPANIANO DEL GRUPO NEUQUÉN, PROVINCIA DEL NEUQUÉN, ARGENTINA
Keywords:
Cretácico, Arecaceae, palmeras, Formación Anacleto, Cuenca Neuquina, AnatomíaAbstract
En este trabajo se describe una nueva especie de palmera fósil procedente de la localidad de Auca Mahuevo, donde aflora la Formación Anacleto (Campaniano), en la provincia del Neuquén, Argentina. Los fosiles descriptos se corresponden a estípites de palmeras, asignados al género Palmoxylon Schenk. Los estipites fueron comparados con otras especies del mismo género y con representantes actuales de las Arecaceae, concluyéndose que pertenece a una nueva especie, denominada Palmoxylon garridoi sp. nov. Martínez. El hallazgo de palmeras en la Formación Anacleto permite sugerir la existencia de un clima cálido en el Campaniano del Grupo Neuquén, y además amplía el biocrón de este género en la Argentina. Abstract. PALM TRUNK IN THE CAMPANIAN OF NEUQUEN GROUP, NEUQUEN PROVINCE, ARGENTINA. In this paper a new species of fossil palm is described from the Auca Mahuevo locality, where the Anacleto Formation (Campanian) crops out, in the Neuquen province, Argentina. The described fossils correspond to palm trunks, referred to the genus Palmoxylon Schenk. These stems were compared with other species of this genus and with extant representatives of the family Arecaceae, and such comparisons allowed to assign it to a new species, Palmoxylon garridoi sp. nov. Martinez. The fossil record of palms in the Anacleto Formation suggests warm climate conditions in the Campanian of the Neuquen Group, and also extends the biochron of this genus in Argentina.Downloads
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