Linn Soc. 2013, 172 (4): 500–523. doi:10.1111/boj.12047 . The typespecimen(英语:typespecimen) of Acacia giraffae, proved on closer examination to be a hybrid
1-9 Cole, V. B. 2007. Field notes regarding the 1930 discovery of the typespecimen of Niobrarasaurus coleii, Gove County, Kansas. Kansas Academy of Science