. Bulletin. Natural history. RUSSELL: AMERICAN MOSASAURS 201 platynotans in the fusion of the stapedial process of the quadrate tween the splenial and angular, nasals were reduced and separated premaxilla and frontal. The palat process of the coronoid to the pr postorbitals and postfrontals were parietal lost its contact posteriorly frontals, the development of a large supra- and the highly developed articulation be- .\s the mosasaurian grade was attained the from each other by the internarial bar of the ine teeth were lost as was the posteromedial earticidar. The lacrymals were reduced, the f


. Bulletin. Natural history. RUSSELL: AMERICAN MOSASAURS 201 platynotans in the fusion of the stapedial process of the quadrate tween the splenial and angular, nasals were reduced and separated premaxilla and frontal. The palat process of the coronoid to the pr postorbitals and postfrontals were parietal lost its contact posteriorly frontals, the development of a large supra- and the highly developed articulation be- .\s the mosasaurian grade was attained the from each other by the internarial bar of the ine teeth were lost as was the posteromedial earticidar. The lacrymals were reduced, the fused, and the anteromedial portion of the witli the postfrontal. The intercentral artic-. 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 Peabody Museum of Natural History. New Haven, Peabody Museum of Natural History, Yale University


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Keywords: ., bookc, bookcentury1900, bookdecade1920, booksubjectnaturalhistory