• The teeth of the dentary are closely spaced and sigmoidal is seen in dorsal view. (wikipedia.org)
  • Data from these scans provide new anatomical information, such as the presence of branching vascular canals within the premaxilla and dentary, and an undescribed dorsal (quadrate) wing of the pterygoid hidden within matrix. (peerj.com)
  • The fused mandibular symphysis might indicate a relation with the Marginocephalia. (wikipedia.org)
  • The maxilla is mediolaterally wide with a straight ventral age and laterally almost vertical. (wikipedia.org)
  • The deeply inset ventral margin in the maxilla suggests fleshy cheeks may have been present. (wikipedia.org)
  • As in other peirosaurs, a knob-like structure can be found on the anterior contour of the premaxillary symphysis. (wikipedia.org)
  • However, they also noticed more derived euornithopod traits, such as the form of the greater and anterior trochanter of the thighbone, although the premaxilla not reaching the lacrimal, the high jaw joint and the premaxilla being on the same level as the maxilla, were again basal traits. (wikipedia.org)
  • Due to damage the exact number of teeth is also unknown, however it is estimated that Barrosasuchus may have had up to 13 maxillary teeth (10 of which were preserved) on each side of the skull in addition to 4 teeth on each premaxilla. (wikipedia.org)
  • Premaxilla narrow, widest point of premaxillary body 12-14 % in premaxillary length. (nct4g.org)
  • Following it the teeth decrease in size until the 8th, at which point dental size increases again up to the 13th dentary tooth. (wikipedia.org)
  • The premaxilla is short and high with a prominent notch between it and the maxilla. (wikipedia.org)
  • Very basal ornithischian traits included the presence of six teeth in the premaxilla with only a short toothless sector in front and a short hiatus with the maxillary teeth. (wikipedia.org)
  • Induszalim bala is the first diagnostic mesoeucrocodile from Indo-Pakistan subcontinent having rostrum articulated with dentary symphysis and associated vertebrae and limb bones and provides facility for comparison with other mesoeucrocodiles. (scirp.org)
  • Induszalim bala shows anterodorsally directed external nares, high or deep and narrow rostrum, the ziphodont type laterally compressed teeth (symmetric to asymmetric oval to asymmetric D shaped, subcircular and heterodont in size), and thick rostral elements. (scirp.org)
  • A considerable portion of sphenodontian fossil diversity is represented only by fragmentary specimens of little systematic value, such as isolated jaws and teeth-e.g., refs. (nature.com)
  • 1970) suggested that the addition of larger teeth at the rear of the dental rows in monophyodont lizards would be a way to maintain appropriate sized teeth in continuously growing jaws. (researchgate.net)
  • The ontogenetic reduction in tooth count in Opisthodontosaurus is difficult to quantify statistically because most of the dentaries are incomplete, making jaw length an ineffective metric by which to approximate size or age of the individual. (researchgate.net)
  • Interestingly, sphenodontians sustained a higher taxonomic diversity compared to squamates during the Triassic and Jurassic, being surpassed by the latter as the most species-rich group of lepidosaur only in the Cretaceous 4 . (nature.com)
  • The higher taxonomic diversity of sphenodontians compared to squamates during the first half of their evolutionary history is contrasted by the quality of their fossil record. (nature.com)
  • Very basal ornithischian traits included the presence of six teeth in the premaxilla with only a short toothless sector in front and a short hiatus with the maxillary teeth. (wikipedia.org)
  • Our analysis of 32 specimens has shown a pattern of ontogenetic tooth loss through the reduction of overall tooth counts from 13 to 10 tooth positions (Fig. 1I). (researchgate.net)
  • The fourth trochanter is pendant and located in a rather high position. (wikipedia.org)
  • Most reptiles exhibit minimal change in tooth position and tooth count, with a few documented exceptions (e.g. (researchgate.net)
  • Reptilian dentitions tend to be homodont (Montanucci, 1968) readily masking any external anatomical evidence of a change in tooth position that would be associated with tooth replacement, as the new tooth would look very similar in size and shape to its predecessor. (researchgate.net)
  • Tooth implantation has been conflated with other tooth characteristics, such as replacement, attachment, and morphology. (researchgate.net)
  • Following it the teeth decrease in size until the 8th, at which point dental size increases again up to the 13th dentary tooth. (wikipedia.org)