. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Morphology of Mammal-like Reptiles of Suborder Therocephalia. 225 establish the fact that no median "vomer" can possibly be present in this position. From my figure it can be seen that the relation of the prevomers, palatines, pterygoids, and ectopterygoids is typical as in all known Therocephalia. Attention may here be drawn to the points in which the Thero- cephalian palate differs from that of the -tm Fig. 8.—Scymnosaurus watsoni. , R4100. Ventral view of the skul
. Annals of the South African Museum = Annale van die Suid-Afrikaanse Museum. Natural history. Morphology of Mammal-like Reptiles of Suborder Therocephalia. 225 establish the fact that no median "vomer" can possibly be present in this position. From my figure it can be seen that the relation of the prevomers, palatines, pterygoids, and ectopterygoids is typical as in all known Therocephalia. Attention may here be drawn to the points in which the Thero- cephalian palate differs from that of the -tm Fig. 8.—Scymnosaurus watsoni. , R4100. Ventral view of the skull, x I. (a) The internal narial opening is relatively shorter and, in the Whaitsids, is wholly or partly bipartite. (b) Posterior to the plane of the nares, the prevomers expand in shovel-shaped fashion and underlie the palatines and ptery- goids, whereas in the Gorgonopsians the prevomers end posteriorly as tapering slips of bone, laterally flanked by the palatines. (c) The suborbital vacuities are large, and consequently the ecto- pterygoids are reduced to form their posterior girder-like Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original South African Museum. Cape Town : The Museum
Size: 1350px × 1851px
Photo credit: © Library Book Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectnaturalhistory, booky
