Title: Annals of the South African Museum. Annale van die Suid-Afrikaanse Museum
Identifier: annalsofsouthafr12sout (find matches)
Year: [1] (s)
Authors: South African Museum; South African Museum. Annale van die Suid-Afrikaanse Museum
Subjects: Natural history
Publisher: Cape Town (etc. , South African Museum, etc. )
Contributing Library: MBLWHOI Library
Digitizing Sponsor: MBLWHOI Library

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Fauna and Stratigraphy of the Stormberg Series. 345 temporal fossa is elongate, oval in shape, and larger than that of Euparkeria or Ornithosuchus. The shape of the infratemporal fossa is characteristic in that its anterior border, formed by the jugal and postorbital, passes upwards and forwards instead of upwards and backwards as in Euparkeria and Ornithosuchus; so that the superior length of the opening is about equal to the inferior length. The snout is characterised by the fact that the premaxilla does not form an anterior border to the nostrils, these being quite ter- minal. Further, there is no trace of a median septum dividing them. The roof of the snout is formed by the paired nasals, which are broken posteriorly. The extreme tip of the left nasal is missing but the bones w-ere obviously pointed in front. The whole of the
Text Appearing After Image:
Fig. 0. Side view of skull of Sphenosuchus acutus Htn. X f. (Slightly restored.) posterior and lower borders of the nostril are formed by the pre- maxilla, which sends back a process separating the forward portion of the maxilla from the nasal. The nostril seems to have had an upper prolongation between the nasal and premaxilla. The pre- maxilla carries apparently three or four simple pointed teeth. There is no septomaxilla present on the face. The antorbital vacuity is large, and is sunken in the face, having borders which make an oblique angle with the sides of the face. The whole of the anterior and lower borders is formed by the maxilla, which extends back only as far as the front of the orbit not nearly so far as in Euparkeria. The maxilla carried about 12 teeth, of which 8 are preserved on the right side. Unfortunately, not one possesses the crown; but a small tooth in the lower jaw shows serrations on the anterior border similar to those of the car- nivorous Dinosaurs. The teeth are llattened laterally, and vary considerably in size. The first maxillary tooth has an antero-posterior

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