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EARLIEST RECORD OF DENTAL PATHOGEN DISCOVERED IN A NORTH AMERICAN EOCENE RABBIT
TLDR
The discovery of a single tooth of the late Eocene North American basal lagomorph Megalagus clearly containing filamentous and occasionally branching microfossils is reported, arguing that these microorganisms were growing during the animal's life and thus document the first known tooth infection in placental mammals. Expand
Morphological Phylogeny of Pikas (Lagomorpha: Ochotona), with a Description of a New Species from the Pliocene/Pleistocene Transition of Hungary
TLDR
It is argued that of two morphotypes observed early in the evolutionary history of Ochotona, namely, the small species forms with minor p3 anteroconid versus large forms with enlarged p3Anterconid with additional folds present, the former is more primitive and most probably evolved directly from the Bellatona—Bellatonoides lineage. Expand
The earliest occurrence of the steppe pika (Ochotona pusilla) in Europe near the Pliocene/Pleistocene boundary
TLDR
This work presents the first reliable record of the earliest O. pusilla entry deep into Europe in the latest Pliocene, which indicates significant climate change towards more arid, continental conditions, which started influencing Europe at 2.6 Ma. Expand