The elevation of the coronoid process angle (CPA) was measured between the lines corresponding to the height of the coronoid process and the
dentary line (Fig.
The symphysis is particularly short, being 1/9 of the total mandible length (table 1) and ends in the middle of the fourth
dentary tooth.
Ossification of jaw elements such as premaxilla and maxilla and
dentary started at 3.21 +- 0.25 mm (9 DPH), and completed at 5.91 +- 0.34 mm (18 DPH, Fig.
Comparative maxillary and
dentary morphology of the Australian dragon (Agamidae: Squamata): a framework for fossil identification.
The jaw bones, the premaxilla and
dentary, on the blind side (Fig.
(6) Each ramus of the mandible consists of the os supra-angulare (dorsal supra-angular bone), os angulare (ventral angular bone), os articulare (osterior articular bone), os spleniale (splenial bone), os prearticulare (prearticular bone), and os dentale (
dentary bone) (Fig 9).
In this sense, a tooth and a partial
dentary found at the Muschelkalk of the area of Bienservida-Villarodrigo (Albacete-Jaen) was indicated as compatible with the genus Nothosaurus (Sanz, 1991).
mystinus by having the ventral margin of head and ventrum generally flat versus rounded and by the allometric development of the symphyseal knob (length of
dentary symphysis 4.0-7.0% HL vs.
In the dermatocranium, besides the pterygoid, the
dentary starts to ossify in the anterior region of Meckel's cartilage.
A partial left mandibular ramus of a small reptile with nine preserved alveoli and teeth (NSM012GF032.002; preserved length: 32 mm) is possibly referable to the Archosauriformes based on the distinctive ornamentation of fine ridges and grooves along the ventrolateral surface of the
dentary. The
dentary is long and low, and its medial surface is concealed by the splenial, which is separated from the
dentary by a long, slender coronoid more posteriorly.
TERA-175, left
dentary with i1-m2 from Betwixt (Fig.