The light was so low inside that these were shot at f/ 2.8 at 1/15s. I was mildly surprised that I managed to get fairly sharp images. Film processed in Rodinal 1+24, for approx. 8:30 at 68 deg. F. The 8.5 min dev time was a guesstimate to push the Tri-X about 1/2 stop.
And because the Rolleiflex' 80mm lens wasn't quite wide enough for these Albertosauruses, I shot a couple with the Fuji X100s and the Fujinon wide conversion lens.