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Clade of dinosaurs
Saurischia (/sɔːˈrɪskiə/ saw-RIS-kee-ə, meaning "reptile-hipped" from the Greek sauros (σαῦρος) meaning 'lizard' and ischion (ἴσχιον) meaning 'hip joint')
Saurischia
Extinct family of basal saurischian dinosaurs
within the clade Saurischia, as the sister group to Sauropodomorpha. This was the result of the removal of Theropoda from Saurischia and its placement
Herrerasauria
Extinct genus of dinosaurs
In 1972, Peter Galton classified the genus as not diagnosable beyond Saurischia. Later, using cladistic analysis, some researchers put Herrerasaurus and
Herrerasaurus
Extinct clade of primarily herbivorous dinosaurs
Dinosauria was an unnatural grouping of two independently-evolved suborders, Saurischia and Ornithischia. It is from the anatomy of the hip that Seeley chose
Ornithischia
Various classifications of Dinosauria
" In 1887 and 1888 Harry Seeley divided dinosaurs into the two orders Saurischia and Ornithischia, based on their hip structure. These divisions have proved
Dinosaur_classification
Clade of reptiles
abandoned in favor of Harry Govier Seeley's division of Dinosauria into Saurischia and Ornithischia. The term was revived in 2017 after a new cladistic analysis
Ornithoscelida
Clade of reptiles
definitions cover the same known genera: Dinosauria = Ornithischia + Saurischia. This includes major groups such as ankylosaurians (armored herbivorous
Dinosaur
United States historic place
Stegosaurus sp. Dinosauria Saurischia Theropoda Allosaurus fragilis Dinosauria Saurischia Theropoda Allosaurus fragilis Dinosauria Saurischia Sauropoda Camarasaurus
Como_Bluff
Genus of theropod dinosaurs from the late Triassic
not a natural group, with Saurischia and Ornithischia replacing it. From this, Huene created the new subgroups of Saurischia, Pachypodosauria for large
Coelophysis
Extinct clade of dinosaurs
redefined Sauropodomorpha and Saurischia and recovered Herrerasauridae as the sister group to Sauropodomorpha within Saurischia. This resulted from the proposed
Sauropodomorpha
Genus of dinosaurs (fossil)
Erich Hermann von Meyer already had commented on this phenomenon with the Saurischia in general. The discovery of a back crest incorporating only two high
Altispinax
Metriacanthosaurid theropod dinosaur genus from Middle Jurassic period
paper on Jurassic and Cretaceous European carnivorous dinosaurs within Saurischia. In this paper, he examined OUM J.12144, assigning it to a new species
Metriacanthosaurus
Extinct genus of dinosaurs
serrations. Saurischia 2009 in paleontology Alcober, Oscar A.; Martinez, Ricardo N. (2010). "A new herrerasaurid (Dinosauria, Saurischia) from the Upper
Panphagia
Group of diapsids broadly classified as reptiles
Dinosauromorpha †Lagerpeton Dinosauriformes †Marasuchus Dinosauria †Ornithischia Saurischia †Sauropodomorpha Theropoda †Herrerasaurus Neotheropoda (Crown group Archosauria)
Archosaur
reptiles, but according to traditional taxonomy they are listed separately. Saurischia includes extinct relatives of birds, the "lizard hipped" dinosaurs. See
List_of_reptile_genera
Clade of reptiles
Silesauridae Dinosauria Müller and Garcia (2020): Dinosauromorpha Lagerpetidae Dinosauriformes Lagosuchus Dinosauria Saurischia Ornithischia (incl. silesaurids)
Dinosauromorpha
Clade of bird-like archosaur reptiles
†Pterosauria Dinosauromorpha †Lagerpetidae Dinosauriformes †Marasuchus Dracohors †Silesauridae Dinosauria †Ornithischia Saurischia †Sauropodomorpha Theropoda
Avemetatarsalia
Genus of Jurassic-aged theropod dinosaur
Geological Society of London in their discovery: basal Dinosauria and Saurischia". Journal of the Geological Society of London. 164 (3): 493–510. Bibcode:2007JGSoc
Megalosaurus
Monophyletic closure of a set of living species
Dinosauria †Ornithischia †Ornithopoda †Hadrosauridae †Thyreophora †Stegosauria Saurischia †Sauropoda Theropoda †Ceratosauria Tetanurae †Allosauroidea Coelurosauria
Crown_group
Extinct genus of reptiles
Romer (Thecodontia-Pseudosuchia) y su significado en el origen de los Saurischia: Chañarense inferior, Triásico medio de Argentina" (PDF). Acta Geológica
Marasuchus
Clade of feathered dinosaurs
1111/j.1475-4983.2009.00887.x. Holtz, T.R. and Osmólska, H. (2004). "Saurischia." In Weishampel, Dodson and Osmólska (eds.), The Dinosauria, second edition
Maniraptora
American paleontologist
wrote the book Dinosaurs and is the author or co-author of the chapters "Saurischia", "Basal Tetanurae", and "Tyrannosauroidea" in the second edition of The
Thomas_R._Holtz_Jr.
Proposed clade of dinosaurs
Saurischia or Theropoda and Ornithischia within Ornithoscelida. In 1888, Harry Govier Seeley divided the Dinosauria into two groups, the Saurischia and
Phytodinosauria
Most forward-facing of the three main regions making up the os coxa
can be found as os penises. The clade Dinosauria is divided into the Saurischia and Ornithischia based on hip structure, including importantly that of
Pubis
Extinct family of dinosaurs
Monographs, Tokyo. 15: 89–109. Ezcurra, M. D. (2010). A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment
Guaibasauridae
Sauropodomorph dinosaur
(1932). "Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte" [The fossil order of reptiles Saurischia, their development and history]
Plateosaurus
Dubious dinosaur genus from South Africa
(ed.). "Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte" [The fossil reptile order Saurischia, its evolution and history]. Monographien
Aetonyx
Extinct genus of dinosaurs
Oscar A.; Martinez, Ricardo N. (2010). "A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina"
Eoraptor
Extinct genus of dinosaurs
(1932). "Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte" [The fossil reptile order Saurischia, its development and history] (PDF)
Proceratosaurus
Extinct genus of silesaurid dinosauromorphs
Dinosauria Saurischia Ornithischia Saltopus Lewisuchus Soumyasaurus Asilisaurus Sulcimentisauria Gamatavus Diodorus Lutungutali Technosaurus Kwanasaurus
Amanasaurus
Extinct genus of reptiles
Lutungutali Sacisaurus Silesaurus Dinosauria †Ornithischia see Ornithischia Saurischia †Alwalkeria? †Chindesaurus †Daemonosaurus †Eodromaeus †Saltopus? †Tawa
Ignotosaurus
Genus of silesaurid dinosauromorphs
Dinosauria Saurischia Ornithischia Saltopus Lewisuchus "silesaurids" Soumyasaurus Asilisaurus Sulcimentisauria Gamatavus Gondwanax Amanasaurus Diodorus
Gondwanax
Extant clade of dinosaurs
Huene abandoned the name "Theropoda", instead using Harry Seeley's Order Saurischia, which Huene divided into the suborders Coelurosauria and Pachypodosauria
Theropoda
Genus of sauropodomorph dinosaurs
(1972). "Fossil vertebrate studies in Rhodesia: a new dinosaur (Reptilia, Saurischia) from near the Triassic-Jurassic boundary". Arnoldia. 5: 1–2, 4. Griffin
Musango
Genus of fossil bipedal reptile closely related to dinosaurs
Romer (Thecodontia-Pseudosuchia) y su significado en el origen de los Saurischia: Chañarense inferior, Triásico medio de Argentina" (PDF). Acta Geológica
Lagosuchus
Genus of theropod dinosaur
"The Pectoral Girdle and Forelimb Function of Deinonychus (Reptilia: Saurischia): A Correction". Postilla, Peabody Museum of Natural History Bulletin
Deinonychus
Late Triassic dinosaur clade
longer being supported. Ezcurra, Martin D. (2010). "A new early dinosaur (Saurischia: Sauropodomorpha) from the Late Triassic of Argentina: a reassessment
Saturnaliidae
Extinct genus of dinosaurs
Agnosphitys as a member of the clade Silesauridae. Langer, 2004. Basal Saurischia. In Weishampel, Dodson and Osmolska. The Dinosauria Second Edition. University
Agnosphitys
Extinct genus of dinosaurs
Saurischia in Europe since the Triassic", Bulletin of the Geological Society of America34: 449-458 Huene, F. von, (1926). The carnivorous Saurischia
Erectopus
Late Jurassic geological formation in Portugal
Hypsilophodon Phyllodon Ankylopollexia Dryosaurus Draconyx Camptosaurus Saurischia Sauropoda Dinheirosaurus Macronaria Lourinhasaurus Pleurocoelus Lusotitan
Lourinhã_Formation
Dubious dinosaur genus from South Africa
(ed.). "Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte" [The fossil reptile order Saurischia, its evolution and history]. Monographien
Aristosaurus
Genus of dinosaurs
Nice. 1: 9–40. Michard, J. G. (1991). "Description du Compsognathus (Saurischia, Theropoda) de Canjuers (Jurassique supérieur du Sud-est de la France)
Compsognathus
Fossil bed in near Ellisdale, New Jersey
The Ellisdale Fossil Site is located near Ellisdale in the valley of the Crosswicks Creek, in Monmouth County, New Jersey, United States. The site has
Ellisdale_Fossil_Site
Fourth and current eon of the geological timescale
Martínez, Ricardo (19 October 2010). "A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina"
Phanerozoic
and relationships of the Upper Jurassic sauropod Apatosaurus (Reptilia, Saurischia)". Bulletin of Carnegie Museum of Natural History. 8: 1–35. doi:10.5962/p
List of dinosaurs of the Morrison Formation
List_of_dinosaurs_of_the_Morrison_Formation
Clade of tetrapods
(Superorder) Clade Dinosauria – dinosaurs Order Ornithischia † (Order) Clade Saurischia (Suborder) Clade Theropoda – theropods Class Aves – birds With the advent
Amniote
Trace fossil
fossil classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda Ichnogenus: †Platysauropus
Platysauropus
Extinct clade of dinosaurs
three taxa of the same rank, possibly at the level of infraorder within Saurischia (one of the two main divisions of dinosaurs, the other being Ornithischia)
Therizinosauria
Extinct genus of dinosaurs
National Museum. 60: 1–154. von Huene, Friedrich (1926). "The Carnivorous Saurischia in the Jura and Cretaceous Formations, principally in Europe". Revista
Dryptosaurus
Extinct genus of paravian dinosaur
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Unenlagiidae Genus: †Kank Motta et al. 2026
Kank
Species of theropod dinosaurs
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda Family: †Spinosauridae Tribe: †Spinosaurini Genus: †Spinosaurus
Spinosaurus_mirabilis
Extinct genus of dinosaurs
(2007-01-01). "A new specimen of Guaibasaurus candelariensis (basal Saurischia) from the Late Triassic Caturrita Formation of southern Brazil". Historical
Guaibasaurus
Extinct species of reptile
Upchurch P & Martin J (2003). "The Anatomy and Taxonomy of Cetiosaurus (Saurischia, Sauropoda) from the Middle Jurassic of England". Journal of Vertebrate
Cetiosaurus
1038/s41598-021-97870-8. PMC 8481559. PMID 34588472. Huene, F. von, 1923, "Carnivorous Saurischia in Europe since the Triassic", Bulletin of the Geological Society of America
Dinosaurs of the Isle of Wight
Dinosaurs_of_the_Isle_of_Wight
Extinct genus of reptiles
Lutungutali Sacisaurus Silesaurus Dinosauria †Ornithischia see Ornithischia Saurischia †Alwalkeria? †Chindesaurus †Daemonosaurus †Eodromaeus †Saltopus? †Tawa
Technosaurus
Extinct genus of silesaurid dinosauromorphs
Lutungutali Lewisuchus Silesaurus Asilisaurus Gamatavus Dinosauria Ornithischia Saurischia Topology 2: Müller and Garcia (2020) dataset Dinosauromorpha Lagosuchus
Gamatavus
Prosauropod dinosaur
Palaeontologische Abhandlungen Suppl. 1(1):1-419 R. Steel. (1970). Part 14. Saurischia. Handbuch der Paläoherpetologie/Encyclopedia of Paleoherpetology. Gustav
Gresslyosaurus
Genus of reptiles (fossil)
but some analyses in their study offer alternative positions within Saurischia. All subsequent studies considered Nhandumirim an early sauropodomorph
Nhandumirim
Species of sauropod
ISSN 1871-174X. Foster, John R.; Wedel, Mathew J. (2014). "Haplocanthosaurus (Saurischia: Sauropoda) from the lower Morrison Formation (Upper Jurassic) near Snowmass
Camarasaurus_lentus
Sauropod dinosaur genus from Late Jurassic period
the Palate and Lower Jaw of the Sauropod Dinosaur Diplodocus (Reptilia: Saurischia) with Remarks on the Nature of the Skull of Apatosaurus". Journal of Paleontology
Apatosaurus
Extinct genus of dinosaurs
Oscar A.; Martinez, Ricardo N. (2010). "A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina"
Sanjuansaurus
Extinct genus of dinosaurs
(1984). "A reassessment of Vulcanodon karibaensis Raath (Dinosauria: Saurischia) and the origin of the Sauropoda". Palaeontologia Africana. 25: 203–205
Vulcanodon
Dinosaur footprint
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: †Sauropodomorpha Ichnofamily: †Otozoidae Ichnogenus: †Otozoum Hitchcock
Otozoum
Extinct clade of dinosaurs
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: †Sauropodomorpha Clade: †Massopoda Clade: †Sauropodiformes Sereno
Sauropodiformes
Ichnogenus of dinosaur footprints
, Feng Xiang-yang, and Zhang Zhi-jun. (2009). "Theropod (Dinosauria: Saurischia) tracks from Lower Cretaceous Yixian Formation at Sihetun Village, Liaoning
Grallator
Megafauna subgroup
Dinosauria Saurischia (carnivorous dinosaurs) Sauropoda Ornithischia Thyreophora Ankylosauria Nodosauridae Ankylosauridae Stegosauria Stegosauridae Neornithischia
Megaherbivore
Dinosaur footprint
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda Ichnogenus: †Hispanosauropus Mensink & Mertmann, 1984
Hispanosauropus
Trace fossil
fossil classification Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda Ichnogenus: †Seakatrisauropus
Seakatrisauropus
Extinct genus of dinosaurs
"On the Occurrence of Exceptionally Large Teeth of Troodon (Dinosauria: Saurischia) from the Late Cretaceous of Northern Alaska" Palaios volume 23 pp.322-328
Troodon
Extinct genus of reptiles
NHMUK PV R 6856 Dinosauria Ornithischia NHMUK PV R 6856 Other ornithischians Saurischia Sauropoda Theropoda Herrerasaurus ischigualastensis Staurikosaurus pricei
Nyasasaurus
Extinct genus of reptiles
"Physiological implications of the bone histology of Syntarsus rhodesiensis (Saurischia: Theropoda)". Palaeontologia Africana. 27: 77–82. Wynd, B.M.; Sidor, C
Teleocrater
Abelisaurid theropod dinosaur genus from the Late Cretaceous Period
University Press p. 78 Huene, F. von, 1932, Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte: Monographien zur Geologie und Palaeontologie
Indosuchus
Extinct genus of dinosaurs
pricei Colbert, 1970. Zootaxa 2079, 1–56. Langer, M. C., 2004, Basal Saurischia, Chapter Two: In: The Dinosauria, Second Edition, edited by Weishampel
Staurikosaurus
Genus of reptiles (fossil)
The Axial and Appendicular Morphology of the First Theropod Skeleton (Saurischia, Dinosauria) of Switzerland (Late Triassic; Frick, Canton Aargau). Master
Notatesseraeraptor
Rock held inside the intestinal tract
Science 25(636): 392. Huene, F. von. 1932. Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien für Geologie und Paläontologie
Gastrolith
Extinct genus of reptiles
Lutungutali Sacisaurus Silesaurus Dinosauria †Ornithischia see Ornithischia Saurischia †Alwalkeria? †Chindesaurus †Daemonosaurus †Eodromaeus †Saltopus? †Tawa
Dongusuchus
Extinct genus of dinosaur from late Triassic southern Africa
southern Africa) and preliminary results on the Maphutseng dinosaur. Saurischia: Prosauropoda) from the same Formation of Lesotho". In Lucas, Spencer
Euskelosaurus
Extinct genus of birds
Ricqlès, Armand (2006): Histological observations of Enantiornithine bone (Saurischia, Aves) from the Lower Cretaceous of Las Hoyas (Spain). C. R. Palevol 5(5):
Avisaurus
Extinct genus of dinosaur
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda (?) Genus: †Chilesaurus Novas et al. 2015 Species: †C
Chilesaurus
Extinct family of dinosaurs
John A. Whitlock (2011). "A phylogenetic analysis of Diplodocoidea (Saurischia: Sauropoda)". Zoological Journal of the Linnean Society. 161 (4): 872–915
Rebbachisauridae
feature) of the Saurischia, as proposed by Gauthier (1986). Hyposphene-hypantrum articulations are found in all the basal members of the Saurischia. However
Hyposphene-hypantrum articulation
Hyposphene-hypantrum_articulation
Extinct genus of dinosaurs
Press, p. 331-336. Currie, P.J. (1989). "The first records of Elmisaurus (Saurischia, Theropoda) from North America." Canadian Journal of Earth Sciences 26(6):1319-1324
Elmisaurus
Extinct clade of dinosaurs
such as Eoraptor, the most basal known member of Dinosauria and also Saurischia, already displayed certain features of the Sauropod group. These derived
Neosauropoda
Extinct genus of dinosaur from early Jurassic South Africa
Museum 7(4):291-308. Friedrich von Huene (1932) Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien zur Geologie und Paläontologie
Gryponyx
Clade of bird-like dinosaurs
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: Theropoda Clade: Pennaraptora Clade: Paraves Sereno, 1997 Subgroups
Paraves
Extinct family of dinosaur-like reptiles
so-called Ornithoscelida hypothesis. This result contradicted the Ornithischa-Saurischia split which has been the consensus in dinosaur paleontology for over a
Silesauridae
Geological formation in Texas
Rose, Peter J. (2007). "A new titanosauriform sauropod (Dinosauria: Saurischia) from the Early Cretaceous of central Texas and its phylogenetic relationships"
Twin_Mountains_Formation
Bone situated in the neck between the chin and the thyroid-cartilage
one of the few cases of postcranial pneumatization of bones outside Saurischia. In woodpeckers, the hyoid bone is elongated, with the horns wrapping
Hyoid_bone
Extinct order of flying reptiles
dinosaurs are defined as the descendants of the last common ancestor of the Saurischia and Ornithischia, which excludes the pterosaurs. Pterosaurs are nonetheless
Pterosaur
Genus of silesaurid dinosauromorphs
Dinosauria Saurischia Ornithischia Saltopus Lewisuchus "silesaurids" Itaguyra Asilisaurus Sulcimentisauria Gamatavus Gondwanax Amanasaurus Diodorus Technosaurus
Itaguyra
Genus of sauropod dinosaur
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: †Sauropodomorpha Clade: †Sauropoda Clade: †Macronaria Family: †Euhelopodidae
Nagatitan
Extinct species of dinosaur
"Carnivorous Saurischia in Europe since the Triassic". Bulletin of the Geological Society of America, 34: 449-458. Kuhn, O. (1939). Saurischia — Fossilium
Megalosaurus_dunkeri
Genus of mammals
pneumatized, one of the few cases of postcranial pneumaticity outside the Saurischia. The volume of the hyoid of male howler monkeys is negatively correlated
Howler_monkey
Species of dinosaur
a cladistic analysis which argued that the Herrerasauridae are basal Saurischia, outside of the Theropoda and Sauropodomorpha. Within Herrerasauridae
Gnathovorax
Extinct genus of dinosaurs
The interrelationships and evolution of basal theropods (Dinosauria, Saurischia). Ph.D. dissertation, Univ. Bristol [U.K.]. 440 pp. "Heraldry of the world
Liliensternus
Genus of theropod dinosaurs
their classification, suggesting early theropod affinities within the Saurischia, rather than an early thyreophoran within the Ornithischia. The informal
Dornraptor
Geological formation in Germany and Switzerland
Abhandlungen. 10 (1): 65–122. von Huene, F. (1932). "Die fossil Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte – ScienceOpen". www.scienceopen.com.
Trossingen_Formation
Extinct genus of dinosaurs
of Biology 53:393–418. von Huene, F., 1932, Die fossile Reptil-Ordnung Saurischia, ihre Entwicklung und Geschichte. Monographien für Geologie und Paläontologie
Procompsognathus
Extinct genus of dinosaurs
is shown below. Forster, J.R.; Wedel, M.J. (2014). "Haplocanthosaurus (Saurischia: Sauropoda) from the lower Morrison Formation (Upper Jurassic) near Snowmass
Haplocanthosaurus
Dinosaur footprint
Kingdom: Animalia Phylum: Chordata Class: Reptilia Clade: Dinosauria Clade: Saurischia Clade: †Sauropodomorpha Ichnofamily: †Navahopodidae Ichnogenus: †Tetrasauropus
Tetrasauropus
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