Scalaridelphys
Scalaridelphys is an extinct genus of aquiladelphid pediomyoid mammal from the Late Cretaceous -aged Straight Cliffs Formation of Utah. Initially named as Scalaria in 2020, the genus name was changed to Scalaridelphys in 2021 when the authors were told by B. Creisler that the name Scalaria was already in use for a now-obsolete genus of gastropod named by Jean-Baptiste Lamarck in 1801. Two species of Scalaridelphys are known: the type species S. martini and S. aquilana.