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Kritosaurus navajovius ✝

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Description

Kritosaurus is an incompletely known genus of hadrosaurid (duck-billed) dinosaur. It lived about 74.5-66 million years ago, in the Late Cretaceous of North America. The name means "separated lizard" (referring to the arrangement of the cheek bones in an incomplete type skull), but is often mistranslated as "noble lizard" in reference to the presumed "Roman nose" (in the original specimen, the nasal region was fragmented and disarticulated, and was originally restored flat).

From Wikipedia article at https://en.wikipedia.org/wiki/Kritosaurus_navajovius, which is released under the Creative Commons Attribution-Share-Alike License 3.0.

Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	8633606	https://www.gbif.org/species/8633606
PaleoBioDB ID (PBDB)	53196	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=53196

Rank

species

Taxonomy (GBIF)

Life : Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae : Kritosaurus : Kritosaurus navajovius

Taxonomy (PBDB)

Life : Animalia : Chordata : Ornithischia : Hadrosauridae : Kritosaurus : Kritosaurus navajovius

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Triploblastica	Lankester 1877
-	Nephrozoa	Jondelius et al. 2002
-	Deuterostomia	Grobben 1908
phylum	Chordata	Haeckel 1847
subphylum	Vertebrata	Lamarck 1801
superclass	Gnathostomata	Gegenbauer 1874
-	Osteichthyes
-	Sarcopterygii	Romer 1955
subclass	Dipnotetrapodomorpha
subclass	Tetrapodomorpha
-	Tetrapoda
-	Reptiliomorpha	Säve-Söderbergh 1934
-	Anthracosauria	Säve-Söderbergh 1934
-	Batrachosauria
-	Cotylosauria
-	Amniota	Haeckel 1866
-	Sauropsida	Huxley 1864
class	Reptilia	Laurenti 1768
subclass	Eureptilia
-	Romeriida	Gauthier et al. 1988
-	Diapsida
-	Eosuchia
-	Neodiapsida	Benton 1985
-	Sauria	Gauthier 1984
-	Archosauromorpha
-	Crocopoda	Ezcurra 2016
-	Archosauriformes	Gauthier 1986
-	Eucrocopoda	Ezcurra 2016
-	Archosauria
informal	Avemetatarsalia	Benton 1999
-	Ornithodira	Gauthier 1986
-	Dinosauromorpha	Benton 1985
-	Dinosauriformes	Novas 1992
-	Dinosauria
-	Ornithischia
-	Neornithischia
-	Ornithopoda
-	Iguanodontia
-	Dryomorpha	Sereno 1986
-	Ankylopollexia	Sereno 1986
-	Styracosterna	Sereno 1986
-	Hadrosauriformes	Sereno 1997
-	Hadrosauroidea
family	Hadrosauridae	Cope 1869
subfamily	Hadrosaurinae	Lambe 1918
tribe	Kritosaurini	Lapparent and Lavocat 1955
genus	Kritosaurus	Brown 1910
species	Kritosaurus navajovius	Brown 1910

Generic Name

Kritosaurus

Scientific Name

Kritosaurus navajovius (Brown, 1910)

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Brown, 1910
Kritosaurus navajovius	species	belongs to Nectosaurus	stated without evidence	Versluys, 1910
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Brown, 1914
Kritosaurus navajovius	species	belongs to Kritosaurus	stated with evidence	Tatarinov, 1964
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Kuhn, 1964
Kritosaurus navajovius	species	belongs to Hadrosaurus	stated without evidence	Lehman, 1981
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Mateer, 1981
Kritosaurus navajovius	species	belongs to Hadrosaurus	stated without evidence	Weishampel and Weishampel, 1983
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Lehman, 1987
Kritosaurus navajovius	species	belongs to Kritosaurus	stated with evidence	Weishampel and Horner, 1990
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Horner, 1992
Kritosaurus navajovius	species	nomen dubium Kritosaurus	stated with evidence	Hunt and Lucas, 1993
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Williamson, 2000
Kritosaurus navajovius	species	nomen dubium Kritosaurus	stated with evidence	Horner et al., 2004
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Kirkland et al., 2006
Kritosaurus navajovius	species	belongs to Kritosaurus	implied	Wagner and Lehman, 2009
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Prieto-Márquez, 2010
Kritosaurus navajovius	species	belongs to Kritosaurus	stated with evidence	Prieto-Marquez, 2013
Kritosaurus navajovius	species	belongs to Kritosaurus	stated without evidence	Ramírez-Velasco et al., 2014

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

83.5 - 70.6 Ma
Late/Upper Cretaceous

Last Recorded Appearance

83.5 - 70.6 Ma
Late/Upper Cretaceous

Environment

terrestrial (based on Ornithischia)

Motility

actively mobile (based on Ornithischia)

Diet

herbivore (based on Ornithopoda)

Reproduction

oviparous, dispersal=direct/internal,mobile (based on Ornithischia)

Ontogeny

accretion,modification of parts (based on Ornithischia)

Taphonomy

hydroxylapatite,compact or dense (based on Ornithischia)

Primary Reference (PBDB)

B. Brown. 1910. The Cretaceous Ojo Alamo beds of New Mexico with description of the new dinosaur genus Kritosaurus. Bulletin of the American Museum of Natural History 28(24):267-274

Wikipedia

https://en.wikipedia.org/wiki/Kritosaurus_navajovius

Fossil Distribution

Obsolete Names

Name	Source	Taxon Rank	Taxonomy
Kritosaurus navajovicus (Brown, 1910)	GBIF	species	Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae : Kritosaurus : *Kritosaurus navajovicus*
Kritosaurus novajovius Brown, 1910	GBIF	species	Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae : Kritosaurus : *Kritosaurus novajovius*
Hadrosaurus navajovius (Brown, 1910)	GBIF	species	Animalia : Chordata : Reptilia : Dinosauria : Hadrosauridae : Kritosaurus : *Hadrosaurus navajovius*

Synonymy List

Year	Name and Author
1910	Kritosaurus navajovius Brown p. 269
1910	Nectosaurus navajovius Versluys p. 224
1914	Kritosaurus navajovius Brown p. 380
1914	Kritosaurus navajovius Sinclair and Granger p. 301
1916	Kritosaurus navajovius Gilmore p. 281
1919	Kritosaurus navajovius Parks p. 51
1920	Kritosaurus navajovius Parks pp. 7-8
1924	Kritosaurus navajovius Gilmore p. 34
1924	Kritosaurus navajovius Reeside, Jr. p. 27
1927	Kritosaurus navajovicus Huene p. 259
1930	Kritosaurus navajovius Russell p. 156
1935	Kritosaurus navajovius Gilmore p. 161
1942	Kritosaurus navajovius Lull and Wright p. 166
1960	Kritosaurus navajovius Vialli p. 176
1964	Kritosaurus navajovius Kuhn p. 21
1964	Kritosaurus navajovius Tatarinov p. 564
1973	Kritosaurus navajovius Powell p. 118
1976	Kritosaurus navajovius Sloan p. 137
1980	Kritosaurus navajovius Wolberg p. 42
1981	Hadrosaurus navajovius Lehman p. 198
1981	Kritosaurus navajovius Mateer p. 55
1983	Hadrosaurus navajovius Weishampel and Weishampel p. 44
1987	Kritosaurus navajovius Lehman p. 207
1990	Kritosaurus navajovius Weishampel and Horner p. 556
1992	Kritosaurus navajovius Horner p. 16
1992	Kritosaurus navajovius Hunt and Lucas p. 228
2000	Kritosaurus navajovius Williamson p. 200

Year	Name and Author
2003	Kritosaurus navajovius Hernandez et al. p. 61A
2003	Kritosaurus navajovius Sullivan and Lucas p. 102A
2004	Kritosaurus navajovius Gates p. 63A
2006	Kritosaurus navajovius Kirkland et al. p. 310
2006	Kritosaurus navajovius Lucas et al. p. 297
2006	Kritosaurus navajovius Lund and Gates p. 273
2006	Kritosaurus navajovius Prieto-Márquez et al. p. 88
2007	Kritosaurus novajovius Gates et al. p. 928 fig. 11
2008	Kritosaurus navajovius Godefroit et al. p. 66
2008	Kritosaurus navajovius Hunt and Lehman p. 1127
2009	Kritosaurus navajovius Wagner and Lehman p. 605
2010	Kritosaurus navajovius Prieto-Marquez p. 845
2010	Kritosaurus navajovius Prieto-Marquez and Salinas p. 829
2010	Kritosaurus navajovius Prieto-Márquez p. 5 fig. 2
2010	Kritosaurus navajovius Prieto-Márquez and Wagner p. 1243 fig. 3
2011	Kritosaurus navajovius Jasinski et al. p. 250
2012	Kritosaurus navajovius Godefroit et al. p. 18 fig. 19
2012	Kritosaurus navajovius Prieto-Márquez p. 518
2012	Kritosaurus navajovius Ramírez-Velasco et al. p. 392
2013	Kritosaurus navajovius Prieto-Marquez
2014	Kritosaurus navajovius Ramírez-Velasco et al. p. 356
2014	Kritosaurus navajovius Sullivan and Lucas p. 370
2016	Kritosaurus navajovius Lehman et al. p. 336
2016	Kritosaurus navajovius Prieto-Márquez and Gutarra p. 137
2017	Kritosaurus navajovius Bertozzo et al. p. 13
2017	Kritosaurus navajovius Cruzado-Caballero and Powell p. 11

References

Brown B. (1910) The Cretaceous Ojo Alamo beds of New Mexico with description of the new dinosaur genus Kritosaurus, Bulletin of the American Museum of Natural History 28 24, 267-274

Brown B. (1914) Cretaceous Eocene correlation in New Mexico, Wyoming, Montana, Alberta, Bulletin of the Geological Society of America 25, 355-380

Sinclair W. J., Granger W. (1914) Paleocene deposits of the San Juan Basin, New Mexico, Bulletin of the American Museum of Natural History 33 22, 297-316

Gilmore C. W. (1916) Contributions to the geology and paleontology of San Juan County, New Mexico. 2. Vertebrate faunas of the Ojo Alamo, Kirtland and Fruitland Formations, United States Geological Survey Professional Paper 98-Q, 279-302

Parks W. A. (1919) Preliminary description of a new species of trachodont dinosaur of the genus Kritosaurus. Kritosaurus incurvimanus, Transactions of the Royal Society of Canada, series 3 13, 51-59

Gilmore C. W. (1924) On the genus Stephanosaurus, with a description of the type specimen of Lambeosaurus lambei, Parks, Canada Department of Mines Geological Survey Bulletin (Geological Series) 38 43, 29-48

Reeside, Jr. J. B. (1924) Upper Cretaceous and Tertiary formations of the western part of the San Juan Basin of Colorado and New Mexico, United States Geological Survey Professional Paper 134, 1-70

Huene F. v. (1927) Contribución a la paleogeografía de Sud América [Contribution to the paleogeography of South America], Boletín de la Academia Nacional de Ciencias de la República Argentina 30, 231-294

Gilmore C. W. (1935) On the Reptilia of the Kirtland Formation of New Mexico, with descriptions of new species of fossil turtles, Proceedings of the United States National Museum 83 2978, 159-188

Lull R. S., Wright N. E. (1942) Hadrosaurian dinosaurs of North America, Geological Society of America Special Paper 40, 1-242

Vialli V. (1960) Uno scheletro di dinosauro del Museo Civico di Storia Naturale di Milano (Kritosaurus notabilis (Lambe)). Osservazioni preliminari [A dinosaur skeleton in the Municipal Museum of Natural History in Milan (Kritosaurus notabilis (Lambe)). Preliminary observations], Atti della Società Italiana di Scienze Naturali e del Museo Civico di Storia Naturale di Milano 99, 169-185

Tatarinov L. P. (1964) Nadotryad Dinosauria. Dinozavry [Superorder Dinosauria. Dinosaurs], Osnovy Paleontologii [Fundamentals of Paleontology] 12, 523-589

Sloan R. E. (1976) The ecology of dinosaur extinction, Athlon: Essays on Palaeontology in Honor of Loris Shano Russell. Royal Ontario Museum, Life Sciences Miscellaneous Publications, 134-154

Lehman T. M. (1981) The Alamo Wash local fauna: a new look at the old Ojo Alamo fauna, Advances in San Juan Basin Paleontology. New Mexico University Press, Albuquerque, 189-221

Mateer N. J. (1981) The reptilian megafauna from the Kirtland Shale (Late Cretaceous) of the San Juan Basin, New Mexico, In S. G. Lucas, J. K. Rigby, Jr. & B. S. Kues (eds.), Advances in San Juan Basin Paleontology. University of New Mexico Press, Albuquerque, 49-75

Weishampel D. B., Weishampel J. B. (1983) Annotated localities of ornithopod dinosaurs: implications to Mesozoic paleobiogeography, The Mosasaur 1, 43-87

Horner J. R. (1992) Cranial morphology of Prosaurolophus (Ornithischia: Hadrosauridae) with descriptions of two new hadrosaurid species and an evaluation of hadrosaurid phylogenetic relationships, Museum of the Rockies Occasional Paper 2, 1-119

Hunt A. P., Lucas S. G. (1992) Stratigraphy, paleontology and age of the Fruitland and Kirtland formations (Upper Cretaceous), San Juan Basin, New Mexico, New Mexico Geological Society, 43rd Annual Fall Field Conference, San Juan Basin IV, Guidebook 43, 217-239

Williamson T. E. (2000) Review of Hadrosauridae (Dinosauria, Ornithischia) from the San Juan Basin, New Mexico, Dinosaurs of New Mexico. New Mexico Museum of Natural History and Science Bulletin 17, 191-213

Hernandez R., Kirkland J. I., et al (2003) A large hadrosaurine from the Sabinas Basin, Coahuila Mexico, Journal of Vertebrate Paleontology 23 3, suppl., 61A

Kirkland J. I., Hernández-Rivera R., et al (2006) Large hadrosaurine dinosaurs from the latest Campanian of Coahuila, Mexico, Late Cretaceous Vertebrates from the Western Interior. New Mexico Museum of Natural History and Science Bulletin 35, 299-315

Prieto-Márquez A., Weishampel D. B., et al (2006) The dinosaur Hadrosaurus foulkii, from the Campanian of the East Coast of North America, with a reevaluation of the genus, Acta Palaeontologica Polonica 51 1, 77-98

Gates T. A., Sampson S. D., et al (2007) Velafrons coahuilensis, a new lambeosaurine hadrosaurid (Dinosauria: Ornithopoda) from the late Campanian Cerro del Pueblo Formation, Coahuila, Mexico, Journal of Vertebrate Paleontology 27 4, 917-930

Godefroit P., Hai S., et al (2008) New hadrosaurid dinosaurs from the uppermost Cretaceous of northeastern China, Acta Palaeontologica Polonica 53 1, 47-74

Hunt R. K., Lehman T. M. (2008) Attributes of the ceratopsian dinosaur Torosaurus, and new material from the Javelina Formation (Maastrichtian) of Texas, Journal of Paleontology 82 6, 1127-1138

Wagner J. R., Lehman T. M. (2009) An enigmatic new lambeosaurine hadrosaur (Reptilia: Dinosauria) from the Upper Shale Member of the Campanian Aguja Formation of trans-Pecos Texas, Journal of Vertebrate Paleontology 29 2, 605-611 doi:10.1671/039.029.0208

Prieto-Marquez A. (2010) The braincase and skull of Gryposaurus notabilis (Dinosauria, Hadrosauridae), with a taxonomic revision of the genus, Journal of Vertebrate Paleontology 30 3, 838-854

Prieto-Márquez A. (2010) Glishades ericksoni, a new hadrosauroid (Dinosauria: Ornithopoda) from the Late Cretaceous of North America, Zootaxa 2452, 1-17

Jasinski S. E., Sullivan R. M., et al (2011) Taxonomic composition of the Alamo Wash local fauna from the Upper Cretacoues Ojo Alamo Formation (Naashoibito Member), San Juan Basin, New Mexico, Fossil Record 3. New Mexico Museum of Natural History and Science Bulletin 53, 216-271

Godefroit P., Bolotsky Y. L., et al (2012) A new saurolophine dinosaur from the latest Cretaceous of far eastern Russia, PLoS ONE 7 5, e36849:1-22 doi:10.1371/journal.pone.0036849

Prieto-Márquez A. (2012) The skull and appendicular skeleton of Gryposaurus latidens, a saurolophine hadrosaurid(Dinosauria: Ornithopoda) from the early Campanian (Cretaceous) of Montana, USA, Canadian Journal of Earth Sciences 49 3, 510-532 doi:10.1139/E11-069

Ramírez-Velasco A. A., Benammi M., et al (2012) Huehuecanauhtlus tiquichensis, a new hadrosauroid dinosaur (Ornithischia: Ornithopoda) from the Santonian (Late Cretaceous) of Michoacán, Mexico, Canadian Journal of Earth Sciences 49, 379-395 doi:10.1139/E11-062

Prieto-Marquez 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 doi:http://dx.doi.org/10.1080/14772019.2013.770417

Ramírez-Velasco A. A., Hernández-Rivera R., et al (2014) The hadrosaurian record from Mexico, Hadrosaurs, 340-360

Sullivan R. M., Lucas S. G. (2014) Stratigraphic distribution of hadrosaurids in the Upper Cretaceous Fruitland, Kirtland, and Ojo Alamo formations, San Juan Basin, New Mexico, Hadrosaurs, 361-384

Lehman T. M., Wick S. L., et al (2016) Hadrosaurian dinosaurs from the Maastrichtian Javelina Formation, Big Bend National Park, Texas, Journal of Paleontology 90 2, 333-356 doi:10.1017/jpa.2016.48

Prieto-Márquez A., Gutarra S. (2016) The ‘duck-billed’ dinosaurs of Careless Creek (Upper Cretaceous of Montana, USA), with comments on hadrosaurid ontogeny, Journal of Paleontology 90 1, 133-146 doi:10.1017/jpa.2016.42

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 37 2, e1289381:1-16 doi:10.1080/02724634.2017.1289381

A. Prieto-Marquez (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 (http://dx.doi.org/10.1080/14772019.2013.770417) - via Catalogue of Life

B. Brown (1910) The Cretaceous Ojo Alamo beds of New Mexico with description of the new dinosaur genus Kritosaurus: Bulletin of the American Museum of Natural History 24: 267--274 - via Catalogue of Life

Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!

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