Nuevos hallazgos de Mammalia, Xenarthra (Cingulata) y confirmación del registro de Pachyarmatherium Leiseyi Downing & White, 1995 en la localidad de Buenos Aires de Palmares, provincia de Alajuela, Costa Rica

new scute remains of cingulata recovered from the upper cenozoic of buenos aires de palmares locality are described. the small osteoderm founds confirms the presence of the pachyarmatherium genus and its north american species at southern central american. besides, its association with the giant scutes of glyptotherium arizonae permits to deduce a late blancan to early irvingtonian age.