Saurolophinae

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Saurolophines
Temporal range: Late Cretaceous, 79–66 Ma
Scientific classification e
Kingdom: Animalia
Phylum: Chordata
Class: Reptilia
Clade: Dinosauria
Order: Ornithischia
Suborder: Ornithopoda
Family: Hadrosauridae
Clade: Euhadrosauria
Subfamily: Saurolophinae
Lambe, 1918
Type species
Saurolophus osborni
Brown, 1912
Genera[5]

Saurolophinae is a subfamily of hadrosaurid dinosaurs. It has since the mid-20th century generally been called the Hadrosaurinae, a group of largely non-crested hadrosaurs related to the crested sub-family Lambeosaurinae. However, the name Hadrosaurinae is based on the genus Hadrosaurus which was found in more recent studies to be more primitive than either lambeosaurines or other traditional "hadrosaurines", like Edmontosaurus and Saurolophus. As a result of this, the name Hadrosaurinae was dropped or restricted to Hadrosaurus alone, and the subfamily comprising the traditional "hadrosaurines" was renamed the Saurolophinae.[5] Recent phylogenetic work by Hai Xing indicates that Hadrosaurus is placed within the monophyletic group containing all non-lambeosaurine hadrosaurids.[6] Therefore, the traditional Hadrosaurinae should be treated as before: Hadrosauridae is divided into two clades: Hadrosaurinae and Lambeosaurinae.

Saurolophinae was first defined as a clade in a 2010 phylogenetic analysis by Prieto-Márquez.[7] Traditionally, the "crestless" branch of the family Hadrosauridae had been named Hadrosaurinae. However, the use of the term Hadrosaurinae was questioned in a comprehensive study of hadrosaurid relationships by Albert Prieto-Márquez in 2010. Prieto-Márquez noted that, though the name Hadrosaurinae had been used for the clade of mostly crestless hadrosaurids by nearly all previous studies, its type species, Hadrosaurus foulkii, has almost always been excluded from the clade that bears its name, in violation of the rules for naming animals set out by the ICZN. Prieto-Márquez (2010) defined Hadrosaurinae as only the lineage containing H. foulkii, and used the name Saurolophinae instead for the traditional grouping.[7]

The cladogram below follows Godefroit et al. (2012) analysis.[8]



Bactrosaurus


 Hadrosauridae 
 Hadrosaurinae 

Hadrosaurus



Lophorhothon



 Saurolophidae 

Lambeosaurinae


 Saurolophinae 

Wulagasaurus



 Brachylophosaurini 

Acristavus




Maiasaura



Brachylophosaurus






Kritosaurus





Gryposaurus latidens




Gryposaurus notabilis



Gryposaurus monumentensis





 Saurolophini 

Prosaurolophus




Saurolophus angustirostris



Saurolophus osborni




 Edmontosaurini 


Kerberosaurus



Kundurosaurus





Edmontosaurus annectens



Edmontosaurus regalis












The following cladogram was recovered in the 2013 phylogenetic analysis by Prieto-Márquez (the relationships within Lambeosaurinae and between basal hadrosauroids aren't shown).[5]



Telmatosaurus




Lophorhothon


 Hadrosauridae 

Hadrosaurus


 Saurolophidae 

Lambeosaurinae


 Saurolophinae 
 Brachylophosaurini 

Acristavus




Maiasaura



Brachylophosaurus






Kerberosaurus




Wulagasaurus



 Edmontosaurini 

Shantungosaurus




Edmontosaurus annectens



Edmontosaurus regalis






PASAC-1 (Unnamed Sabinas species)



 Saurolophini 

Prosaurolophus




Saurolophus morrisi




Saurolophus osborni



Saurolophus angustirostris





 Kritosaurini

Naashoibitosaurus





Kritosaurus horneri



Kritosaurus navajovius






Gryposaurus latidens




Gryposaurus notabilis



Gryposaurus monumentensis






UTEP 37.7 (Unnamed Big Bend species)




Secernosaurus



Willinakaqe

















Graphical timeline of taxonomy[edit]

21st century in paleontology 20th century in paleontology 19th century in paleontology 2090s in paleontology 2080s in paleontology 2070s in paleontology 2060s in paleontology 2050s in paleontology 2040s in paleontology 2030s in paleontology 2020s in paleontology 2010s in paleontology 2000s in paleontology 1990s in paleontology 1980s in paleontology 1970s in paleontology 1960s in paleontology 1950s in paleontology 1940s in paleontology 1930s in paleontology 1920s in paleontology 1910s in paleontology 1900s in paleontology 1890s in paleontology 1880s in paleontology 1870s in paleontology 1860s in paleontology 1850s in paleontology 1840s in paleontology 1830s in paleontology 1820s in paleontology Augustynolophus Willinakaqe Secernosaurus Kritosaurus Gryposaurus Anasazisaurus Naashoibitosaurus Saurolophus Prosaurolophus Edmontosaurus Shantungosaurus Wulagasaurus Kundurosaurus Kerberosaurus Brachylophosaurus Maiasaura Acristavus Rhinorex 21st century in paleontology 20th century in paleontology 19th century in paleontology 2090s in paleontology 2080s in paleontology 2070s in paleontology 2060s in paleontology 2050s in paleontology 2040s in paleontology 2030s in paleontology 2020s in paleontology 2010s in paleontology 2000s in paleontology 1990s in paleontology 1980s in paleontology 1970s in paleontology 1960s in paleontology 1950s in paleontology 1940s in paleontology 1930s in paleontology 1920s in paleontology 1910s in paleontology 1900s in paleontology 1890s in paleontology 1880s in paleontology 1870s in paleontology 1860s in paleontology 1850s in paleontology 1840s in paleontology 1830s in paleontology 1820s in paleontology

See also[edit]

References[edit]

  1. ^ Prieto-Márquez, Albert; Serrano Brañas, Claudia Inés (2012). "Latirhinus uitstlani, a 'broad-nosed' saurolophine hadrosaurid (Dinosauria, Ornithopoda) from the late Campanian (Cretaceous) of northern Mexico". Historical Biology. 24 (6): 607–619. doi:10.1080/08912963.2012.671311. 
  2. ^ & Scheetz (2014): A new saurolophine hadrosaurid (Dinosauria: Ornithopoda) from the Campanian of Utah, North America Journal of Systematic Paleontology. doi: 10.1080/14772019.2014.950614
  3. ^ Albert Prieto-Márquez, Jonathan R. Wagner, Phil R. Bell and Luis M. Chiappe, 2014, "The late-surviving ‘duck-billed’ dinosaur Augustynolophus from the upper Maastrichtian of western North America and crest evolution in Saurolophini", Geological Magazine doi:10.1017/S0016756814000284
  4. ^ Cruzado-Caballero, P.; Powell, J. E. (2017). "Bonapartesaurus rionegrensis, a new hadrosaurine dinosaur from South America: implications for phylogenetic and biogeographic relations with North America". Journal of Vertebrate Paleontology (In press): 1–16. doi:10.1080/02724634.2017.1289381. 
  5. ^ a b c Prieto-Márquez, A. (2013). "Skeletal morphology of Kritosaurus navajovius (Dinosauria:Hadrosauridae) from the Late Cretaceous of the North American south-west, with an evaluation of the phylogenetic systematics and biogeography of Kritosaurini". Journal of Systematic Palaeontology. in press. doi:10.1080/14772019.2013.770417. 
  6. ^ Xing, H.; Wang, D.; Han, F.; Sullivan, C.; Ma, Q.; He, Y.; Hone, D. W. E.; Yan, R.; Du, F.; Xu, X. (2014). "A New Basal Hadrosauroid Dinosaur (Dinosauria: Ornithopoda) with Transitional Features from the Late Cretaceous of Henan Province, China". PLoS ONE. 9 (6): e98821. doi:10.1371/journal.pone.0098821. PMC 4047018Freely accessible. PMID 24901454. 
  7. ^ a b Prieto-Márquez, A. (2010). "Global phylogeny of Hadrosauridae (Dinosauria: Ornithopoda) using parsimony and Bayesian methods". Zoological Journal of the Linnean Society. 159 (2): 435–502. doi:10.1111/j.1096-3642.2009.00617.x. 
  8. ^ Godefroit, P.; Bolotsky, Y. L.; Lauters, P. (2012). Joger, Ulrich, ed. "A New Saurolophine Dinosaur from the Latest Cretaceous of Far Eastern Russia". PLoS ONE 7 (5): e36849. doi:10.1371/journal.pone.0036849. PMC 3364265. PMID 22666331.