REFERENCES TO THE PLATES. 



The specimens figured belong to the Museum of the Academy of Natural Sciences of Philadelphia, 

 unless otherwise stated. 



PLATE I. 



Figs. 1-6. Thoracosaurus neocesariensis. 



Pig. 1. Skull of Thoracosaurus neocesariensis, from the Cretaceous limestone of Vincenttown, 

 Burlington County, New Jersey. Upper view, one-half the diameter of the original. 



Fig. 2. Lateral view of the same specimen. 



Fig. 3. Tooth of Thoracosaurus neocesariensis, from Burlington County, New Jersey. Lateral 

 view, natural size. 



Fig. 4, Tooth, from near Blackwoodtown, Camden County. External view, natural size. 



Fig. 5. Tooth, found with that of Fig. 3. Lateral view, natural size. 



Fig. 6. Tooth of the same species, from the limestone of Big Timber Creek, Gloucester County, 

 New Jersey. Lateral view, natural size. 



Figs. 1-9. Teeth of a Gavial, from Blackwoodtown, Camden County, New Jersey. Lateral views, 

 natural size. 



PLATE II. 



Figs. 1-3. Thoracosaurus neocesariensis. 



Fig. 1. Inferior view of one-half of the skull, one-third the diameter of nature. Prom the same 

 specimen as Figs. 1, 2, of the preceding Plate. 



Fig. 2. Fragment of the uppei; jaw, left side, from the Cretaceous limestone near Blackwood- 

 town, Camden County, New Jersey. One-half the diameter of the original, a, b. Maxillo-malar 

 suture. 



Fig. 3. A dermal plate, from the Green-sand of Mount Holly, Burlington County, New Jersey. 

 One-half the diameter of nature. 



Figs. 4-T. Yertebrse of Crocodiles, one-half the diameter of nature. 



Pigs. 4, 5. Two cervical vertebrse, probably the fourth and fifth, from Barnsboro, Gloucester 

 County, New Jersey. Belonging to the collection of Rutger's College, New Brunswick, New Jersey. 



Fig. 6. Cervical vertebra, probably the fifth, from Jobstown, Burlington County, New Jersey. 



Fig. t. Cervical vertebra, from St. George's, New Castle County, Delaware. 



Fig. 8. Upper view of a fragment of a small Gavial skull, from the Green-sand of Burlington 

 County, New Jersey. One-half the diameter of nature, a, Frontal ; b, orbital margin ; c, parietal ; 

 d, coronal suture. 



Figs. 9-11. Posterior dorsal vertebrae of Hadrosaurus Foulkii, one-third the diameter of nature. 



Figs. 9, 10. Lateral view, left side. 



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