page_title: Maevarano Formation
section_title: Mammals
hierarchical_section_title: Maevarano Formation / Vertebrate paleofauna / Mammals
caption_attribution_description: English: Life reconstruction of Vintana sertichi. Postcranial reconstruction is hypothetical.
context_page_description: The Maevarano Formation is a Late Cretaceous sedimentary rock formation found in the Mahajanga Province of northwestern Madagascar. It is most likely Maastrichtian in age, and records a seasonal, semiarid environment with rivers that had greatly varying discharges. Notable animal fossils recovered include the theropod dinosaur Majungasaurus, the early bird Vorona, the flying dromaeosaur Rahonavis, the titanosaurian sauropod Rapetosaurus, and the giant frog Beelzebufo.
context_section_description: The mammal fauna known from the Maevarano Formation is dominated by gondwanatheres, a lineage of herbivorous multituberculates. These include Lavanify miolaka, Vintana sertichi, Adalatherium hui and at least one undescribed taxa. Some taxa are particularly large sized herbivores, exemplifying the diversity of Mesozoic mammals.
  Other mammal remains include the broken tooth UA 8699, which has been interpreted both as metatherian and as eutherian, a non-gondwanathere multituberculate tooth fragment, a non-gondwanathere multituberculate femur, and a yet undescribed mammal known from an articulated skeleton.
caption: Vintana, a large sized gondwanathere mammal
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