Troodon formosus Leidy 1856 (coelurosaur)

Reptilia - Avetheropoda - Troodontidae

Synonyms: Polyodontosaurus grandis Gilmore 1932, Saurornithoides inequalis Sternberg 1932, Stenonychosaurus inequalis Sternberg 1932, Troodon inequalis Sternberg 1932

Full reference: J. Leidy. 1856. Notices of remains of extinct reptiles and fishes, discovered by Dr. F. V. Hayden in the bad lands of the Judith River, Nebraska Territory. Proceedings of the Academy of Natural Sciences of Philadelphia 8:72-73

Belongs to Troodon according to B. R. Peecook and C. A. Sidor 2015

See also Araújo et al. 2013, Averianov and Sues 2007, Bever and Norell 2009, Brown 1908, Brown 1914, Brown and Druckenmiller 2011, Brown and Schlaikjer 1943, Buffetaut et al. 2005, Carpenter 1982, Chure 1994, Cooper et al. 2008, Cope 1870, Cope 1874, Cope 1875, Cope 1877, Currie 1985, Currie 1987, Currie 1992, Currie 2000, Currie 2000, Currie 2005, Currie and Dong 2001, Currie and Peng 1994, Currie et al. 1990, Currie and Zhao 1994, Eberth 1997, Eberth et al. 2001, Erickson 1997, Fiorillo 2008, Fiorillo et al. 2009, Gao et al. 2012, Gauthier 1986, Genise and Sarzetti 2011, Gilmore 1924, Gilmore 1931, Gilmore 1932, Godefroit et al. 2009, Hay 1902, Hennig 1915, Hernández-Rivera 1997, Horner et al. 2001, Huene 1927, Jackson et al. 2010, Johnson et al. 2006, Lambe 1902, Lambe 1905, Larson and Currie 2013, Larsson 2001, Leidy 1856, Leidy 1857, Leidy 1860, Longrich 2008, Lü et al. 2010, Makovicky and Norell 1998, Makovicky et al. 2003, Makovicky and Norell 2004, Mallon et al. 2016, McIntosh 1981, Norell and Makovicky 1997, Norell et al. 2000, Norell et al. 2009, Osmolska 1981, Ostrom 1969, Paul 1988, Paulina Carabajal and Canale 2010, Peng et al. 2001, Porfiri et al. 2011, Prieto-Marquez et al. 2012, Rauhut 2003, Rauhut and Kriwet 1994, Rich et al. 1988, Russell 1930, Russell 1946, Russell 1948, Russell 1964, Russell 1966, Russell 1969, Russell and Dong 1994, Ryan and Vickaryous 1997, Sankey et al. 2002, Senter et al. 2004, Steel 1970, Sternberg 1932, Sternberg 1951, Sues 1977, Sues 1978, Swinton 1970, Turner et al. 2007, Varricchio 1997, Varricchio et al. 2002, Varricchio et al. 2015, Williamson and Brusatte 2014, Wilson and Currie 1985, Wolberg 1980 and Zanno et al. 2011

Sister taxa: none

Type specimens:

  • Troodon formosus: ANSP 9259, a tooth. Its type locality is Judith River badlands (USGS), which is in a Campanian/Campanian terrestrial horizon in the Judith River Formation of Montana.
  • Polyodontosaurus grandis: NMC 8540, a mandible. Its type locality is Polyodontosaurus type, RTMP (NMC), which is in a Campanian terrestrial horizon in the Dinosaur Park Formation of Canada.
  • Stenonychosaurus inequalis: NMC 8539. Its type locality is 1.5 miles southwest of mouth, Berry Creek, which is in a Campanian terrestrial horizon in Canada.

Ecology: ground dwelling carnivore-omnivore

Distribution:

• Cretaceous of Canada (29: Alberta collections), the Russian Federation (1), United States (25: Alaska, Montana, Wyoming)

Total: 55 collections each including a single occurrence

Show more details


Specimen images are retrieved through the ePANDDA API.


Click image to enlarge. Click to access iDigBio record.