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Naashoibitosaurus ostromi
Taxonomy
Naashoibitosaurus ostromi was named by Hunt and Lucas (1993). Its type specimen is NMMNH P-16106, a partial skeleton, and it is a 3D body fossil. Its type locality is head of Willow Wash, SMP loc. 376a, which is in a Campanian terrestrial horizon in the Kirtland Formation of New Mexico.
It was synonymized subjectively with Kritosaurus navajovius by Williamson (2000), Prieto-Márquez et al. (2006), Godefroit et al. (2008) and Prieto-Márquez (2010).
It was synonymized subjectively with Kritosaurus navajovius by Williamson (2000), Prieto-Márquez et al. (2006), Godefroit et al. (2008) and Prieto-Márquez (2010).
Synonymy list
| Year | Name and author |
|---|---|
| 1993 | Naashoibitosaurus ostromi Hunt and Lucas p. 82–83 |
| 1997 | Naashoibitosaurus ostromi Ryan p. 391 |
| 1999 | Naashoibitosaurus ostromi Williamson p. 44 |
| 2003 | Naashoibitosaurus ostromi Sullivan and Lucas p. 102A |
| 2004 | Naashoibitosaurus ostromi Horner et al. p. 440 |
| 2005 | Naashoibitosaurus ostromi Sullivan et al. p. 398 |
| 2006 | Naashoibitosaurus ostromi Lund and Gates p. 273 |
| 2011 | Naashoibitosaurus ostromi Jasinski et al. p. 250 |
| 2013 | Naashoibitosaurus ostromi Prieto-Marquez |
| 2014 | Naashoibitosaurus ostromi Sullivan and Lucas p. 371 |
| 2015 | Naashoibitosaurus ostromi Jasinski p. 79 |
| 2016 | Naashoibitosaurus ostromi Lehman et al. p. 350 |
| 2016 | Naashoibitosaurus ostromi Prieto-Márquez and Gutarra p. 142 |
| 2017 | Naashoibitosaurus ostromi Bertozzo et al. p. 13 |
| 2017 | Naashoibitosaurus ostromi Cruzado-Caballero and Powell p. 11 |
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Naashoibitosaurus ostromi Hunt and Lucas 1993
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Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. P. Hunt and S. G. Lucas 1993 | N. ostromi (type species of the genus by monotypy) is a hadrosaurid that differs from other members of the family, except Grpyosaurus, in possessing a nasal arch that rises above the anterior end of the orbits; that differs from Gryposaurus in possessing nasals that bifurcate posteriorly so that the frontals extend anteriorly between the nasals along the midline; and in possessing nasals whose posterior processes are overlapped by extensive medial wings of the prefrtonals so that it appears in dorsal view that the transverse widrh of the nasals is narrower than the transverse width of the prefrontals. |
Measurements
No measurements are available
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| Source: subo = suborder, o = order | |||||
| References: Marsh 1875, Benton 1983 | |||||
Age range: Late/Upper Campanian or 83.50000 to 70.60000 Ma
Collections: one only
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Late/Upper Campanian | USA (New Mexico) | Edmontosaurus saskatchewanensis (type locality: 36269) |