Mesozoic and CoenozoiG Geology and Palonontology. 17 



the head of Wind River valle}', Grypluea calceola, var. nebrascensis 

 Modiola formosa, now Volsella formosa., Neritella nebrascensis, 

 Melania veterna, now Lioplacodes veterna. 



In 1864, F. B. Meek* described, from the Jurassic, of California, 

 Rhynchonella gnathophora^ Lima siniiata, L. recticostata, L. citne- 

 ata, Pecten acutipHcatus, Inoceramiis obliquus, I. rectangidus, Trig- 

 onia pandicosta^ Ilytilus midtistriatus, Astarte ventricosa, Uni- 

 cardium gibbosimi, Ilyacitus depressus. And W. M. Gabbf described 

 Lima erringtoni^ now Aucella erringtoni, and JBeleinnites paci- 

 ficus. 



And from the Triassic rocks,]; in the Buena Vista District, and the 

 Humboldt Mining Region of Nevada Territory. Orthoceras blakei, 

 JSfautilus ivhitmyi, N. m^dticameratus, Ceratites whitneyi^ Ammonites 

 blakei, A. homfrayi, A. billingsanus, Myacites fiumboldtensis, Cor- 

 bula blakei, Mytilus homfrayi^ Avicula homfrayi, Halobia dubia, 

 Rhynchopterus obesus, Posidonomya stella, P. dayionensis, 3Iyo- 

 phoria alia, Terebratula fiumboldtensis, Rhynchonella lingulata, R. 

 oiquiplicata, Spirifera homfrayi, from Sonora Mexico, Panopoea re- 

 mondi, from Gilford's Ranch, Plumas county, California, Avicula mu- 

 cronata, Jfonotis subcircularis, Pecten deformis. 



In 1865, F. B. Meek§ described, from the Jurassic, near the south- 

 west base of the Black Hills, Viviparus gilli; from the auriferous 

 slates on the Mariposa estate of California,! Aucella erringtoni, var. 

 linguiformis, and Amussium aurarium. J. D. Whitney referred the 

 auriferous rocks of El Dorado, Mariposa, and Toulomme counties, 

 California, to Jurassic or Triassic age. And Bailey and Matthew^ 

 showed that the Trias of New Brunswick consists of three small 

 patches, on the coast of the Bay of Fundy, one at Quaco Head, an- 

 other at Gardner's Creek, and the other at Salisbury Cove. 



In 1806, Prof. E. D. Cope*'*' described, from the Triassic, at Phoenix- 

 ville, Pa., Masfodonsaiirus durus, now Eupelor durus, and Ptet^- 

 odactylus longispinus. 



In 1867, Prof. Swallowff found, in eastern Kansas, what he sup- 

 posed to be the Triassic, consisting of a sei-ies of buff, red and 



* Pal. ofCal., vol. i. 

 t Proc. Cal. Acad. Sci. 

 X Pal. of Cal., vol. i. 



I Pal. Up., Mo. 



II Geo. Sur. Cal., vol. i. 



If Rep. on S. N. Brunswick. 

 '•■* Proc. Acad. Nat. Sci. 

 tt Proc. Am. Ass. Ad. Sci. 



