98 University of California. [vol. 3 



broad tuberculum, such as is seen in thoracic ribs of the other 

 species. 



Measurements : 



4th vertebra 



Height of centrum including inferior process 49 mm. 



Width of centrum 49 



Length of centrum 22 



Height of diapophysis 22 



Height of parapophysis 9 



6th vertebra 



Height of centrum, approximately 44 



Length of centrum 27 



Height of upper arch 74 



Width of upper arch half way between summit and 



posterior zygapophyses 18 



Thickness of upper arch at summit 18 



Height of diapophysis 24 



Height of parapophysis 9 



8th vertebra — Length of centrum 28 



9th vertebra — Length of centrum 30 



Shastasaurus careyi n. sp. 

 Pl. 16, pigs. 3 and 4. 



Among the most interesting remains that have been obtained 

 from the Shasta County Triassic are several gigantic vertebra? 

 and portions of ribs belonging with them. The first determinable 

 specimens were found by Mr. E. R. Carey in the small exposure 

 of limestone on Bear Mountain, twenty miles northeast of 

 Redding. Other less perfect examples were obtained by Mr. 

 V. C. Osmont, Mr. H. W. Furlong, and the writer at the Cove, 

 near Madison's ranch. 



The vertebra? collected by Mr. Carey are considerably wider 

 than high (180 mm. to ICO mm.), and the short, broad dia- 

 pophyses do not reach below the middle of the centrum. The 

 parapophyses are very rudimentary, being represented only by 

 small, rounded tubercles near the anterior margin of the centrum. 

 The length of the centrum ((>() mm.) is relatively less than in 

 any of the other species. A rib-head resting against the side of 

 one of the centra shows no trace of a capitulum . Part of a thick 

 upper arch which is present shows strong zygapophyses. 



The width of the centra and the shortness of the diapophyses 

 of these vertebra? seem to indicate that they belong in the cervical 



