Icaronycteris
Videos
Icaronycteris is an extinct genus of microchiropteran bat that lived in the early Eocene, approximately 52.2 million years ago, making it the earliest bat genus known from complete skeletons, and the
Icaronycteris fossil at AMNH
Fossil holotype of Icaronycteris gunnelli dorsal view
Restoration of I. index
Onychonycteris
Videos
Onychonycteris was the more primitive of the three oldest bats known from complete skeletons, having lived in the area that is current day Wyoming during the Eocene period, 52.5 million years ago.
Icaronycteris
…followed by Archaeonycteris, Hassianycetris, and Palaeochiropteryx, in a series leading to extant microchiropteran bats. Rietbergen et al. 2023 found Onychonycteris to be sister to the North American species of Icaronycteris. This position was supported by Jones et al. (2024), who found Icaronycteris index and I…
Onychonycteris finneyi Fossil Butte National Monument
Restoration