Occurrence of Cyclusphaera Scabrata in Achiri (Late Middle-Early Late Miocene?, Bolivian Altiplano): Paleogeographical Implication

MERCEDES B. PRAMPAROPierre-Olivier AntoineLaurent MarivauxRubén Andrade FloresMarcos Fernández‐MonescilloAlberto BoscainiBernardino Mamaní QuispeSéverine FauquetteColline BonnetPhilippe Münch2026-03-222026-03-22202210.2139/ssrn.4147734https://doi.org/10.2139/ssrn.4147734https://andeanlibrary.org/handle/123456789/72074enLate MiocenePaleontologyGeographyGeologyAncient historyOccurrence of Cyclusphaera Scabrata in Achiri (Late Middle-Early Late Miocene?, Bolivian Altiplano): Paleogeographical Implicationarticle