Ailuropodinae is a subfamily of Ursidae that contains only one extant species, the giant panda (Ailuropoda melanoleuca) of China. The fossil record of this group has shown that various species of pandas were more widespread across the Holarctic, with species found in places such as Europe, much of Asia, North America and even Africa.[1][2][3][4] The earliest pandas were not unlike other modern bear species in that they had an omnivorous diet but by around 2.4 million years ago, pandas have evolved to be more herbivorous.[5][6]
^Ginsburg, Léonard, and Jorge Morales. "Hemicyoninae (Ursidae, Carnivora, Mammalia) and the related taxa from Early and Middle Miocene of Western Europe." Annales de paleontologie. Vol. 1. No. 84. 1998.
^Montoya, P., L. Alcalá, and Jorge Morales. Indarctos (Ursidae, Mammalia) from the Spanish Turolian (Upper Miocene). Nationaal Natuurhistorisch Museum, 2001.
^Abella, J., Plinio Montoya, and J. Morales. "Una nueva especie de Agriarctos (Ailuropodinae, Ursidae, Carnivora) en la localidad de Nombrevilla 2 (Zaragoza, España)." Estudios Geológicos 67.2 (2011): 187-191.