. Bulletin of the British Museum (Natural History). OSTEOLOGY OF THE DE NTI C I PI T I D A E 237 Most of the lateral face of the dentary is without odontodes. There are, however, dense patches of elongate odontodes covering the anterior and posterior quarters of the lateral face. These two areas are connected by a hnear patch (two rows deep posteriorly, becoming multilinear anteriorly) situated along the ventral margin of the lateral face. On the ventral face (which slopes medially at a gentle angle) odontodes occur in a single line on the tubular part of the laterosensory canal, and in severa
. Bulletin of the British Museum (Natural History). OSTEOLOGY OF THE DE NTI C I PI T I D A E 237 Most of the lateral face of the dentary is without odontodes. There are, however, dense patches of elongate odontodes covering the anterior and posterior quarters of the lateral face. These two areas are connected by a hnear patch (two rows deep posteriorly, becoming multilinear anteriorly) situated along the ventral margin of the lateral face. On the ventral face (which slopes medially at a gentle angle) odontodes occur in a single line on the tubular part of the laterosensory canal, and in several rows along the ventromedial margin. An initially double but posteriorly single row of odontodes extends along what would normally be the alveolar surface of the dentary. It reaches posteriorly to beyond the hinder level of the posterior lateral odontode patch, thus extending along about the anterior third of the coronoid eminence. There is complete spatial continuity between the anterior lateral odontode patch and the odontodes forming the mandibular " tooth-row ", and no difference in the external appearance of the odontodes and the 1mm. Fig. 17. (a) Lower jaw, palatoquadrate arch, preoperculum and hyomandibiila (right), in lateral view. (B) Articular (left) in medial view. The bases of the entopterygoid teeth are shown as circles. The articular (angular of authors) is an elongate, rather shallow bone that pene- trates deeply into a narrow longitudinal recess of the dentary (Text-fig. 17). Posteri- orly it is thickened, the dorsal surface provided with a deep, hook-like notch for articulation with the quadrate; the posteroventral margin is excavated to receive the retroarticular. Medially there is a well-developed and ossified portion of Meckel's cartilage (the articular of authors), preceded by a slender, spicule-hke sesamoid articular. On the lateral face there is a sensory canal crossing obhquely downwards. Please note that these images are extracted fro
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Keywords: ., 1968, boo, bookauthorbritishmuseumnaturalhistory, bookcentury1900
