Tropical fossil mitogenomes: Holocene biogeography of two codistributed rodent genera from the Yucatán peninsula

Integrating ancient fossil DNA with modern genetic samples is aiding in advancing the fields of ecology and biogeography. However, wide gaps in the fossil record still remain throughout the tropics, while genetic and genomic datasets from tiny (<50 mg) ancient tropical fossils recovered from small mass species (<100 g) are particularly scarce. We studied tropical fossil hemimandible samples of two rodent genera from seven stratigraphic strata...