“…Analytic comparisons of the Arundel Clay fauna and those of these two units (Table 1 of Appendix 1) show the Arundel fauna is somewhat similar in composition to that of the Ruby Ranch in containing Deinonychus, Tenontosaurus, Acrocanthosaurus, or a similar taxon, a large nodosaurid, and a large titanosauriform (e.g., Leidy, 1865;Marsh, 1888;Kranz, 1996;Weishampel, 2006;Ostrom, 1970;Weishampel et al, 2004;Mori, 2009;Woodruff, 2012;D'Emic and Foreman, 2012;Mannion et al, 2013;Oreska et al, 2013). Notably, ornithomimosaurs and neoceratopsians are absent from the Ruby Ranch Member, though they are present in both the Arundel and the Cloverly Formation along with a large nodosaurid (Sauropelta), Deinonychus, Acrocanthosaurus, Tenontosaurus, ornithomimosaurs, and titanosauriforms (Ostrom, 1969(Ostrom, , 1970(Ostrom, , 1976Kranz, 1996;Chinnery et al, 1998;Makovicky and Sues, 1998;Gignac and Makovicky, 2010;Woodruff, 2012;Oreska et al, 2013;Farke et al, 2014;Brownstein, 2017a).…”