VERTEBRATE PALEONTOLOGY IN 191 1 571 



same communication Mr. Wieland furnishes additional par- 

 ticulars with regard to the dermal plates and other remains 

 described under the name of Hierosaurus sternbergi, from the 

 Niobrara Cretaceous, which, it is stated, indicate a reptile of 

 about four metres in length and therefore about half the 

 size of Stegosaurus. Possibly they may prove generically in- 

 separable from the reptile previously named Stegopelta. 



Hitherto the great Omosaurus armatus of the Kimeridge 

 Clay of Swindon has been the only well-known European 

 representative of the Stegosauridce, and Baron F. Nopcsa's 

 identification {Geol. Mag. decade 5, vol. viii. pp. 109-53) of a 

 British representative of the typical American genus is there- 

 fore of considerable interest. The remains which were 

 obtained from the Oxford Clay, near Peterborough, are 

 referred to a new species, Stegosaurus prisons, specially dis- 

 tinguished by the relatively small height of the neural arches 

 of the trunk-vertebrae. 



Podokosaurus holyokensis is the somewhat uncouth designa- 

 tion given by Miss Mignon Talbot (Amer. J. Set. vol. xxxi. 

 pp. 469-79) to the imperfect skeleton of a small and appar- 

 ently carnivorous dinosaur contained in a split boulder of the 

 Triassic sandstone of the Connecticut Valley. The length of 

 the body is about eighteen centimetres ; the proportions of the 

 limbs are indicative of bipedal and cursorial habits in an arid 

 district. Possibly this dinosaur may have an earlier name, as 

 the bones may represent one of the reptiles named on the 

 evidence of footprints from the Connecticut Trias. 



The dinosaurs of the Stormberg beds of South Africa are 

 discussed by Dr. R. Broom in an article published in vol. vii. 

 part 4, of the Annals of the South African Museum. Seven 

 distinct generic types of these Stormberg dinosaurs are recog- 

 nised by the author, namely, Euscelesaurus, Hortalotarsus, Gypo- 

 saurus, Gryponyx, Massospondylus, ^Etonyx and Geranosaurus, 

 of which the third, fourth, sixth and seventh are described 

 for the first time. The first six are referable to the car- 

 nivorous group but the last is characterised by the presence 

 of a toothless predentary bone at the tip of the lower jaw. 

 The latter specialised feature suggests that the horizon of 

 the Stormberg beds is of Lower Jurassic rather than Triassic 

 age and, even so, Geranosaurus will be the oldest known 

 type furnished with a predentary bone. 



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