The first record of the plesiosaurian genus Polyptychodon (Pliosauridae) from the New World
S. P. Welles, and Bob H. Slaughter
Teeth, skull fragments, lower jaw, and an isolated vertebra of a short-necked plesiosaur were collected from the Eagle Ford Shale (Turonian) near Dallas, Texas. Close to Polyptychodon interruptus Owen, but smaller and lacking the high parietal crest, this is given a new specific name and is the first representative of this genus from the Western Hemisphere.
This record provided courtesy of AGI/GeoRef.