Figure 1 in The rarity of gastroliths in sauropod dinosaurs - a case study in the Late Jurassic Morrison Formation, western USA

Figure 1. Studied dinosaur localities in the western USA. The surrounding line represents the extension of the Morrison Formation. Abbreviations: BCQ – Bone Cabin Quarry; CLDQ – Cleveland- Lloyd Dinosaur Quarry; DMDQ – Dry Mesa Dinosaur Quarry; DNM (CQ) – Dinosaur National Monument (Carnegie Quarry); Howe Q and HSQ – Howe Quarry and Howe Stephens Quarry; SIQ – "Something Interesting Quarry" (Camarasaurus). The red bones represent sites where gastroliths have been found in association with bones. Redrawn and modified from Dodson et al. (1980b).