1. The Sangamonian Pointe-Fortune site, Ontario-Quebec border;Anderson;Géographie Physique et Quaternaire,1990
2. Fossil beetles from a fossil wood rat midden in western Texas;Ashworth;Coleopterists Bulletin,1973
3. Ashworth, A.C. (1979). Quaternary Coleoptera studies in North America: Past and present. In: Erwin, T.L., Ball, G.E. & Whitehead, D.R. (Eds), Carabid Beetles, Their Evolution, Natural History and Classification. Dr.W. Junk bv Publishers, The Hague, pp. 395–406.
4. Environmental implications of a beetle assemblage from the Gervais Formation (early Wisconsinan?) Minnesota;Ashworth;Quaternary Research,1980
5. The response of arctic Carabidae (Coleoptera) to climate change based on the fossil record of the Quaternary Period;Ashworth;Annales Zoologici Fennici,1996