Kimbetopsalis simmonsae is an extinct species of multituberculate (an extinct mammal group) from the Paleocene (Puercan 2) of Colorado. It lived about 65.5 million years ago, at least a million years after the non-avian dinosaurs went extinct.Carolyn Gramling, Sarah Shelley (image): How mammals took over the world. ScienceNews; June 7, 2022. – Includes live reconstruction. Kimbetopsalis was first described in 2015. A 2026 study regarded Kimbetopsalis simmonsae as a species of Taeniolabis.
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