Surangular


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Sur`an´gu`lar


a.1.(Anat.) Above the angular bone; supra-angular; - applied to a bone of the lower jaw in many reptiles and birds.
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In relation to the dermatocranium, other bony elements start to ossify; these include the prefrontal, the frontal, the parietal, the supratemporal, the palatine, the dentary and the surangular (Table 2).
The entire lateral surface of the angular and surangular is strongly ornamented by circular pits.
The angular has a horizontal suture with the surangular in the anterior and middle section.
The posterior part of the surangular extends to reach the lateral posterior tip of the retroarticular process.
El surangular lleva una marcada cresta en su borde dorso-lateral que se curva medialmente atras formando una arista en el margen anterior de la fosa glenoidea, de la cual participa minimamente.
Los huesos restantes son el surangular, el angular, el esplenico y el prearticular.
The lower jaw was almost completely made up of dentary bone; other minor components included the angular, surangular, and articular bones.
Posteriorly, the dentary contributes to the low coronoid eminence with the surangular (Fig.
The surangular of Nyctiphruretus does not extend beyond the coronoid eminence (Fig.
Anterior to the articular region, there is a accessory lateral shelf present on the surangular, so scoring for Nyctiphruretus (Fig.
12533, 12534, 12535, 12537, 12538, 12546, 12550, 12551, 12553, 12555, 12557, 12562, 12565, 12566, 12571, 12572, 12574, 12575, 12579, 12582, 12585, 12588, 12590, 12595, 12596; 33 left dentaries, GCVP 12532, 12536, 12539, 12540, 12541-12545, 12547, 12549, 12552, 12554, 12556, 12558, 12559-12561, 12563, 2564, 12567, 12568, 12573, 12576-12578, 12580, 12581, 12587, 12592-12594, 12597; 36 parietals, GCVP 12496-12531; 26 frontals, GCVP 12705-12730; 91 squamosals, GCVP 12598-12688; 11 surangulars, GCVP 12694-12704; 5 jugals, GCVP 12689-12693.