Oryctoantiquus borealis, New Genus And Species From The Eocene Of Oregon, U. S. A., The World’ S Oldest Fossil Dynastine And Largest Fossil Scarabaeid (Coleoptera: Scarabaeidae: Dynastinae) Author Ratcliffe, Brett C. Systematics Research Collections W- 436 Nebraska Hall University of Nebraska Lincoln, NE 68588 - 0514, U. S. A. bratcliffe1@unl.edu Author Smith, Dena M. University of Colorado Museum of Natural History UCB 265, University of Colorado Boulder, CO 80309, U. S. A. Dena.Smith@colorado.edu Author Erwin, Diane Museum of Paleontology 1101 Valley Life Sciences Bldg. University of California Berkeley, CA 94720, U. S. A. dmerwin@uclink4.berkeley.edu text The Coleopterists Bulletin 2005 2005-03-01 59 1 127 135 journal article 10.1649/0010-065x(2005)059[0127:obngas]2.0.co;2 1938-4394 4924192 Oryctoantiquus Ratcliffe and Smith , new genus Type Species. Oryctoantiquus borealis Ratcliffe and Smith. Diagnosis. The same as for the monotypic species, Oryctoantiquus borealis . The pattern of punctures on the metasternum, combined with the large body size and form of the posterior legs, distinguishes Oryctoantiquus from other genera in the tribe Oryctini . Fig. 1. Oryctoantiquus borealis . Scale bar equals 10 mm. Etymology. The generic name is derived from the Greek oryktes , meaning digger (also the stem of the dynastine tribal name Oryctini ), and the Latin antiquus , meaning old; hence the ‘‘old digger’’ or ‘‘old oryctine’’ in reference to the 45 million year old age of the fossil and the tribe to which we assign it.