Glishades

Glishades
Temporal range: Late Cretaceous, 74.5Ma
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Superorder: Dinosauria
Order: Ornithischia
Infraorder: Ornithopoda
Superfamily: Hadrosauroidea
Genus: Glishades
Prieto-Márquez, 2010
Species
  • G. ericksoni Prieto-Márquez, 2010 (type)

Glishades is a genus of hadrosauroid dinosaur that lived in the Late Cretaceous in North America. It is based on AMNH 27414, two partial premaxillae discovered in the Upper Cretaceous rocks of the upper Two Medicine Formation in Montana, dated to about 74.5 million years ago. Cladistic analysis conducted by Prieto-Márquez suggests that Glishades is a non-hadrosaurid hadrosauroid, probably a sister taxon to Bactrosaurus johnsoni. The type species is Glishades ericksoni.[1]

According to Campione et al. (2012) the holotype specimen of Glishades ericksoni might actually be an indeterminate juvenile saurolophine hadrosaurid; these authors consider G. ericksoni to be a nomen dubium.[2]

References

  1. Prieto-Márquez, Albert (2010). "Glishades ericksoni, a new hadrosauroid (Dinosauria: Ornithopoda) from the Late Cretaceous of North America" (PDF). Zootaxa 2452: 1–17.
  2. Nicolás E. Campione, Kirstin S. Brink, Elizabeth A. Freedman, Christopher T. McGarrity and David C. Evans (2012). "‘Glishades ericksoni’, an indeterminate juvenile hadrosaurid from the Two Medicine Formation of Montana: implications for hadrosauroid diversity in the latest Cretaceous (Campanian-Maastrichtian) of western North America". Palaeobiodiversity and Palaeoenvironments. in press. doi:10.1007/s12549-012-0097-1.