Research overview: Hyperailurictis and the first cats of North America

This overview surveys Hyperailurictis, the name applied to the North American Pseudaelurus-grade cats that represent the first true felids to colonize the continent after the cat gap. Arriving from Eurasia across the Bering land bridge in the Miocene, these stem cats reestablished felids in North America and set the stage for later native radiations. The survey reviews the morphology of Hyperailurictis, its distinction from Old World Pseudaelurus through recent taxonomic revision, and what its appearance reveals about intercontinental felid dispersal. It discusses how these early North American cats relate to the subsequent evolution of New World felines and machairodonts, and why pinning down their identity matters for reconstructing the biogeographic history of cats across the Northern Hemisphere.