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*  Hesperosaurus - Wikipedia
The antorbital fenestra is large instead of very small. The maxilla is short and deep, half as tall as long, instead of having ... Thirteen dorsal (back) vertebrae are present instead of seventeen. The middle dorsals have a basal form in possessing a low ... The plates of the hip and tail base are oval and low instead of high and triangular. The various published descriptions of ... Maidment also provided some traits in which Hesperosaurus was more basal than Stegosaurus armatus. In the atlas, even in adult ...
  https://en.wikipedia.org/wiki/Hesperosaurus
*  Liaoningvenator - Wikipedia
The tooth row of the maxilla terminates below the front margin of the antorbital fenestra, whereas it terminates further ... The acromion process on the scapula of Liaoningvenator is poorly developed, as in basal troodontids. Unlike basal troodontids, ... Liaoningvenator possesses a long, narrow, and triangular skull that measured 9.8 cm (3.9 in) long. At the front of the snout, ... forward - below the rear of the maxillary fenestra - in Jinfengopteryx. There are 10 cervical vertebrae, 12 dorsal (trunk) ...
  https://en.wikipedia.org/wiki/Liaoningvenator
*  Heleosaurus - Wikipedia
A long narrow rectangular process of the naris along the antorbital region forms a straight dorsal border with the external ... Presence of this kind of fenestrae are seen in diapsids but absent in basal synapsids. The parabasisphenoid has a cultriform ... A slightly larger caniniform is present a third of the way in from the anterior end of the maxilla. These teeth are very ... H. scholtzi's parietals are broad, triangular, and take up most of the post-orbital region. The corners form a wing-like ...
  https://en.wikipedia.org/wiki/Heleosaurus
*  Monolophosaurus - Wikipedia
The maxilla bears thirteen teeth. The maxilla has a short depression around the lower front of the antorbital fenestra. Within ... In the lower jaw, the external mandibular fenestra is rather small for a basal tetanuran. The holotype shows eighteen teeth in ... Transversely it has a triangular cross-section with a broad base and a more narrow top; this does not form a ridge, however, ... At least the first three dorsal vertebrae of the back have pleurocoels as well. The dorsals are connected by robust hyposphene- ...
  https://en.wikipedia.org/wiki/Monolophosaurus
*  Plateosaurus - Wikipedia
The large, round orbit (eye socket), the sub-triangular antorbital fenestra and the oval naris (nostril) are of almost equal ... Basal sauropodomorph phylogeny simplified after Yates, 2007. This is only one of many proposed cladograms for basal ... The jaws carried many small, leaf-shaped, socketed teeth: 5 to 6 per premaxilla, 24 to 30 per maxilla, and 21 to 28 per dentary ... Complete skeletons and large skeleton parts that include the hind limbs all rest dorsal (top) side up, as do the turtles. Also ...
  https://en.wikipedia.org/wiki/Plateosaurus
*  Matheronodon - Wikipedia
Also at the base of the dorsal process is a small triangular projection delimiting the back of the antorbital fenestra, which ... Even though the maxilla is large, it bears only eight tooth sockets. Zalmoxes has up to 10, and Rhabdodon has 11. The walls ... Rhabdodontids, which were more basal, had a far simpler arrangement, with teeth more similar to those of less specialized ... The maxilla of Matheronodon is a short, robust bone. The front portion is particularly shortened and also angled upwards, ...
  https://en.wikipedia.org/wiki/Matheronodon
*  stegosaurus Archives - I Know Dino: The Big Dinosaur Website
Differences he found include Hesperosaurus having a large antorbital fenestra, a short and deep maxilla, 13 neck vertebrae ... instead of 10, 13 dorsal (back) vertebrae instead of 17, and oval shaped plates instead of triangular plates ... Kenneth Carpenter originally said Hesperosaurus was a basal stegosaur. But in 2008, Susannah Maidment and colleagues published ... Skull was triangular. *Some Edmontosaurus skulls were so well preserved scientists could make casts of the brain cavity (had a ...
  http://iknowdino.com/tag/stegosaurus/
*  Arcovenator - Wikipedia
The members of this taxonomical group have various cranial characters in common including an elongated antorbital fenestra, and ... It is likely that a maxilla, the sole fossil found of the so-called Pourcieux abelisaurid, is referable to at least this genus ... It has, in a similar autapomorphic fashion, a thick, rough-surfaced process dorsal to the eye socket that extends to the ... Two lineages of European abelisaurs are discerned: a basal one, including the small Albian Genusaurus and Lower Campanian ...
  https://en.wikipedia.org/wiki/Arcovenator
*  The left maxilla (NRRU-A2048) of Sirindhorna.In lateral | Open-i
The left maxilla (NRRU-A2048) of Sirindhorna.In lateral (A), ventral (B), medial (C), occulusal (D) views. Abbreviations: ect. ... There is no evidence of the antorbital fossa (fenestra), and the articular surface for the jugal is situated just caudal to the ... In dorsal view, the body of the maxilla is nearly straight, and the lateral and medial outlines of the maxilla run parallel ( ... A new basal hadrosauroid dinosaur from the Lower Cretaceous Khok Kruat Formation of Thailand, Sirindhorna khoratensis gen. et ...
  https://openi.nlm.nih.gov/detailedresult.php?img=PMC4696827_pone.0145904.g006&req=4
*  Eolambia - Wikipedia
The body of the maxilla itself does not bear a recess or any indication of an antorbital fenestra, like Equijubus, Protohadros ... The first few dorsal vertebrae are similar to the cervical vertebrae, but have taller and more prong-like neural spines. The ... Gasca, J.M.; Moreno-Azanza, M.; Ruiz-OmeƱaca, J.I.; Canudo, J.I. (2015). "New material and phylogenetic position of the basal ... The top of the ulna bears three "prongs", namely the olecranon process and two additional triangular flanges. Meanwhile, the ...
  https://en.wikipedia.org/wiki/Eolambia
*  Gracilisuchus - Wikipedia
Its skull openings are relatively large, with the antorbital fenestra occupying 30-36% of the skull roof's length and the eye ... and the presence of a triangular process bearing a clear apex on the maxilla. Within the Gracilisuchidae, Butler and colleagues ... In both cases, it was more basal than the same group in Olsen and colleagues' analysis, being united by a ridge on the ... There are sixteen dorsal vertebrae. Like Parringtonia, Nundasuchus, and other archosaurs, the articulating surfaces of their ...
  https://en.wikipedia.org/wiki/Gracilisuchus
*  Jianianhualong - Wikipedia
... the large antorbital fenestra, long tooth row of the maxilla, and finely-serrated teeth represent basal characteristics in an ... Behind the maxilla, the indentation known as the antorbital fossa is large and sub-triangular, and bears two large openings ( ... Like other basal members of the Paraves, the dorsal neural spines are fan-shaped, with the neural spines belonging to the rear ... the sub-triangular antorbital fossa; the relatively long maxillary fenestra; the short jugal branch of the postorbital; the ...
  https://en.wikipedia.org/wiki/Jianianhualong
*  The Theropod Database Blog: March 2011
... maxillary antorbital fossa rostral to internal antorbital fenestra broad and rostrocaudally well extended; medial wall of the ... third dorsal veertebra, sixth dorsal vertebra, ninth dorsal vertebra, tenth dorsal vertebra, eleventh dorsal vertebra, dorsal ... antorbital fossa exposure on lacrimal large, with triangular fossa on ventral process; vertebra 25 (dorsosacral) incorporated ... Tykoski (2005)- subnarial process of premaxilla narrow and rod-like; maxilla anterodorsally concave; nasal contacts antorbital ...
  http://theropoddatabase.blogspot.rs/2011/03/
*  Heterodontosaurus - Wikipedia
The unerupted teeth are triangular in lateral view, which is the typical tooth morphology in basal ornithischians. The ... The dorsal spine was stiffened by ossified tendons, beginning with the fourth dorsal vertebra. This feature is present in many ... a fragmentary maxilla (SAM-PK-K1326), a left maxilla with teeth and adjacent bones (SAM-PK-K1334), all of which were collected ... Ventrally, the antorbital fossa was bounded by a prominent bony ridge, to which the animal's fleshy cheek would have been ...
  https://en.wikipedia.org/wiki/Heterodontosaurus
*  Proceedings of the Royal Society of London B: Biological Sciences
j,l) Pedal phalanx IV-2 in (j) left lateral and (l) dorsal views. af, antorbital fenestra; cp, carotid process; d, dentary; dp ... The antorbital fenestra is also low and elongate, but restricted to the caudal portion of maxilla. A single, large, elliptical ... The frontal of Austroraptor is triangular shaped in dorsal aspect, tapering rostrally as in troodontids (Currie 1987a,b). The ... 2007 A basal dromaeosaurid and size evolution preceding avian flight. Science. 317, 1378-1381. doi:10.1126/science.1144066. ...
  http://rspb.royalsocietypublishing.org/content/276/1659/1101.short
*  Scipionyx - Wikipedia
Accordingly, the semi-circular antorbital fenestra, the normally largest skull opening, is short too and smaller than the eye- ... The maxilla behind it, is deep with a very short front branch. It carries seven teeth. The depression in its surface for the ... Below the ninth dorsal vertebra the location of the stomach is shown by a cluster of bones of prey animals, the organ itself ... They admitted this was at odds with their own phylogenetic analysis, showing Scipionyx to be a basal compsognathid, but they ...
  https://en.wikipedia.org/wiki/Scipionyx
*  Cranial morphology of Sinovenator changii (Theropoda: Troodontidae) on the new material from the Yixian Formation of western...
... and contributes to the posteroventral corner of the antorbital fenestra. In dorsal view, the dorsal margin of the suborbital ... The anterior process has limited contact with the maxilla rostrally, and forms most of the dorsal margin of the antorbital ... The neural spine is blade-like, and roughly triangular in lateral view. The dorsal margin of the neural spine is oblique ... The skull and neck of the basal theropod Herrerasaurus ischigualastensis.. Journal of Vertebrate Paleontology 13(4):451-476 ...
  https://peerj.com/articles/4977/
*  Psittacosaurus - Wikipedia
In addition, the antorbital fenestra, an opening in the skull between the eye socket and nostril, was lost during the evolution ... Skulls of P. mongoliensis are flat on top, especially over the back of the skull, with a triangular depression, the antorbital ... In 2005, Zhou and colleagues suggested that P. lujiatunensis is basal to all other species. This would be consistent with its ... on the maxilla of the upper jaw. The maxillary protuberance is also now missing. Other features originally used to distinguish ...
  https://en.wikipedia.org/wiki/Psittacosaurus
*  The Theropod Database Blog: 2013
Naris larger than antorbital fenestra. This was miscoded for Daemonosaurus, Saturnalia (unknown) and Pantydraco. It's actually ... Varies so much that either a straight or convex maxilla might be basal for Saurischia, Dinosauria, Silesauridae+Dinosauria or ... Snout roughly triangular. As in Tawa and Coelophysis, which are more derived than Eoraptor, Herrerasaurus and Eodromaeus in ... Mid-cervical centra (here c5-7 are used) shorter than mid dorsal centra (here d7-9 used). This was miscoded by Peters as true ...
  http://theropoddatabase.blogspot.rs/2013/
*  New ankylosaurine from Montana | Open Science
As in other ankylosaurines, the antorbital fenestra is absent and the supratemporal fenestrae are obscured. In dorsal view, the ... It extends onto the dorsal surface of the rostrum and is taller than wide. Ventrally the maxilla is exposed without ... The lateral caudal osteoderms are triangular, sharply pointed in dorsal view, and dorsoventrally compressed (figures 6 and 7, ... 2016 A basal ceratopsid (Centrosaurinae: Nasutoceratopsini) from the Oldman Formation (Campanian) of Alberta, Canada. Can. J. ...
  http://rsos.royalsocietypublishing.org/content/4/5/161086
*  Comments on Triassic pterosaurs with discussion about ontogeny and description of new taxa
... antorbital fenestra, art - articular, cor - coracoid, d - dentary, exmf - external mandibular fenestra, f - frontal, fe - femur ... An external mandibular fenestra and other archosauriform character states in basal pterosaurs. Palaeodiversity 3: 225-233. [ ... lower temporal fenestra, m - maxilla, maxws - maximized wingspan, mcIV - metacarpal IV, n - nasal, nar - external naris, or - ... surangular dorsal process, sca - scapula, sq - squamosal, st - sternum, ti - tibia, ul - ulna, utf - upper temporal fenestra. ...
  http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000200669&lng=en&tlng=en
*  The Theropod Database Blog: 2011
... dorsal process narrow resulting in dorsal exposure of nares (1).. 8. Choana palatal exposure: parallel medial border of maxilla ... Maybe that's the basal grade for troodontids, and birds are related but evolved serrationless teeth, long arms, dorsal ischial ... Suborbital fenestra: absent (0); present but with contribution from either maxilla or jugal along lateral border (1); present, ... crest triangular (2)", because there are lots of other shapes besides round and triangular, but PAUP could easily make state 0 ...
  http://theropoddatabase.blogspot.rs/2011/
*  The Theropod Database Blog: June 2011
... dorsal process narrow resulting in dorsal exposure of nares (1).. 8. Choana palatal exposure: parallel medial border of maxilla ... Suborbital fenestra: absent (0); present but with contribution from either maxilla or jugal along lateral border (1); present, ... Alvarezsaurids as basal maniraptorans outside therizinosaurs+oviraptorosaurs+paravians- 3. Alvarezsaurids as basal paravians- 2 ... Prefrontal/palatine antorbital contact: narrow forming less than 1/3 the transverse distance between the orbits (0); contact ...
  http://theropoddatabase.blogspot.rs/2011/06/
*  Species New to Science: June 2017
... upturned antorbital process of maxilla (100: 1), and splayed basal cusps on posterior teeth (206: 1). Like some archaeocetes, ... Scalacurvichthys naishi is notable for its protruding, hook-shaped first dorsal ridge scale above a large triangular ... dermocranial fenestra absent; premaxillary bone with two teeth and no olfactory fenestra; 21 neural vertebrae excluding the ... A-E) Cranium in (A) lateral and (B) dorsal views. For comparison, (C) shows a dorsal view of the archaeocete Zygorhiza kochii ( ...
  http://novataxa.blogspot.com.br/2017/06/
*  Species New to Science: December 2015
Diagnosis: Basal hadrosauroid distinguished by an autapomorphy: sagittal crest extending along entire dorsal surface of the ... and nonvisible antorbital fossa of the maxilla in lateral view. Phylogenetic analysis revealed S. khoratensis as among the most ... and the closure of the antorbital fenestra. Uniquely, the craniocaudally-elongated parietals form a long saggital crest ... narrow triangular internasals, small eyes with round pupil and stout body. Furthermore, during a short period in captivity, the ...
  http://novataxa.blogspot.com.br/2015/12/