<ref name="Agosti_et_al_1998">{{cite journal |first1=D. |last1=Agosti |first2=D. |last2=Grimaldi |first3=J. M. |last3=Carpenter |year=1998 |title=Oldest known ant fossils discovered |url=https://antcat.org/documents/3783/9506.pdf |journal=Nature (London) |publisher= |volume=391 |issue= |pages=447 |doi= }}</ref>