Minhe Formation

Campanian to Maastrichtian

Gansu and Nei Mongol Zizhiqu, China

Dinosaurs:

            Theropoda indet.

            Velociraptor mongoliensis

            Pachycephalosauridae indet. (including Troodon bexelli)

Sauropoda indet.

Nodosauridae indet.

Ornithischia indet. (including Peishansaurus philemys)

Ankylosauridae indet. (including Heishansaurus pachycephalus)

Microceratus gobiensis (including Microceratops gobiensis and Microceratops sulcidens)

Protoceratops andrewsi

Other Animals:

Crocodylia indet.

Peishanemys latipons

Osteopygis sp.

            Mammalia indet.

Notes:

The so-called Troodon bexelli of this formation is actually a pachycephalosaurid (Maryańska et al. 2007) and is probably more accurately been placed in the genus Stegoceras. Peishansaurus is a fragmentary jaw that could remotely belong to a juvenile ankylosaur (Vickaryous et al. 2007). Many of the other dinosaur remains are dubious at best, including remains assigned to Microceratops (Weishampel et al. 2007). As a likely oasis before disaster struck, crocodiles, turtles, and fish were present.

References:

Maryańska, T., R. E. Chapman, et D. B. Weishampel. 2007. “Pachycephalosauria.” In D. B. Weishampel, P. Dodson, and H. Osmólska. The Dinosauria, Second Edition. Berkeley, CA: University of California Press. 464-477.

Vickaryous, M K., T. Maryańska, D. B. Weishampel. 2007. “Ankylosauria.” In D. B. Weishampel, P. Dodson, and H. Osmólska. The Dinosauria, Second Edition. Berkeley, CA: University of California Press. 363-392.

Weishampel, D. B., P. M. Barrett, R. A. Coria, J. L. Loeuff, X. Xing, Z. Xijin, A. Sahni, E. M. P. Gomani, C. R. Noto. 2007. “Dinosaur Distribution.” In D. B. Weishampel, P. Dodson, and H. Osmólska. The Dinosauria, Second Edition. Berkeley, CA: University of California Press. 517-606.