Ksepka, D.T.; Clarke, J.A. (2009). "Affinities of Palaeospiza bella and the Phylogeny and Biogeography of Mousebirds (Coliiformes)". The Auk. 126 (2). The American Ornithologists' Union: 245–259. doi:10.1525/auk.2009.07178. S2CID85597698.
Worley-Georg, M.P.; Eberle, J.J. (2006). "Additions to the Chadronian mammalian fauna, Florissant Formation, Florissant Fossil Beds National Monument, Colorado". Journal of Vertebrate Paleontology. 26 (3). The Society of Vertebrate Paleontology: 685–696. doi:10.1671/0272-4634(2006)26[685:ATTCMF]2.0.CO;2. S2CID131484415.
Ksepka, D.T.; Clarke, J.A. (2009). "Affinities of Palaeospiza bella and the Phylogeny and Biogeography of Mousebirds (Coliiformes)". The Auk. 126 (2). The American Ornithologists' Union: 245–259. doi:10.1525/auk.2009.07178. S2CID85597698.
Worley-Georg, M.P.; Eberle, J.J. (2006). "Additions to the Chadronian mammalian fauna, Florissant Formation, Florissant Fossil Beds National Monument, Colorado". Journal of Vertebrate Paleontology. 26 (3). The Society of Vertebrate Paleontology: 685–696. doi:10.1671/0272-4634(2006)26[685:ATTCMF]2.0.CO;2. S2CID131484415.