CASE— COTYLOSAURIA ' 





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S.O- 



1 rop view of skull of specimen of 5. baylorettsis. X %. From Broili. », nasal; /, lachrymal; prf, prefrontal; 

 orbit; m, maxillary; />//, postfrontal; po, postorbital;/, jugal;/, frontal;//, intertemporal; sq, prosquamos- 

 al; st, squamosal; e, epiotic;/, parietal; so, supraoccipital plates. 

 1. Clavicles and interclavicle of Seymouria. X %. From Broili. cl, clavicle; est, interelaviele. 



3. Posterior view of skull of. Seymouria. X %. From Broili. e, tabulare; so, supraoccipital plates; ex, exoccipil 



al; fin, foramen magnum;//, pterygoid; c, condyle;/, paroccipital; rn, mandible. 



4. Skull and anterior vertebrse of Seytnouria. X %. From Broili. Letters as in fig. 1- 



5. Lower surface of skull of Seymouria. X %. From Broili. ps, parasphenoid; bps, basisphenoid; bo, basioc- 



cipital; e, condyle; />/, pterygoid; />, paroccipital; d. remains of small teeth. 



