Researches on the Structure, Organization, and Classification of the Fossil Reptilia VII Further Observations on Pareiasaurus . is much lessdeveloped than in this fossil. The articular head of the bone is convex from withinoutward. Both its inferior and superior surfaces are convex. It is about 3 inchesdeep in the middle, flattened or slightly concave, becoming narrow on the inner border, 352 PROFESSOR H. G. SEELEY ON THE STRUCTURE, ORGANIZATION, which is rounded. It is prolonged as a slightly concave cartilaginous surface along about5 inches of the downwardly reflected external crest, which i
Researches on the Structure, Organization, and Classification of the Fossil Reptilia VII Further Observations on Pareiasaurus . is much lessdeveloped than in this fossil. The articular head of the bone is convex from withinoutward. Both its inferior and superior surfaces are convex. It is about 3 inchesdeep in the middle, flattened or slightly concave, becoming narrow on the inner border, 352 PROFESSOR H. G. SEELEY ON THE STRUCTURE, ORGANIZATION, which is rounded. It is prolonged as a slightly concave cartilaginous surface along about5 inches of the downwardly reflected external crest, which is from 1 inch to 1\ inchthick where the cartilage surface ends. The bone then becomes more compressed androunded from side to side. In the crushed specimen from the right side, the extremetransverse width of the proximal end is 10 inches ; the least width in the lower thirdof the shaft is 5^ inches ; the maximum width of the distal end, as preserved,is 1\ inches. From the evidence of the uncrushed left femur, these measure-ments are in excess of the true proportions, and due to distortion of the bone. The Pig. 8. Fig.
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Keywords: ., bookauthorseeleyh, bookcentury1800, bookdecade1890, bookyear1892
