(CIT OEMS IIGILAIOINS Ole Wise, IIRUAS Ole 
CATR ORIN TA: 
ffistorical,— Triassic fossils were discovered in California by 
the State Geological Survey under J. D. Whitney; these were 
rightly recognized by Gabb? as being nearly related to the Upper 
Triassic Fauna of the Alps, and certain species were even looked 
upon as identical with European forms. This was the first discov- 
ery of marine Trias in the western hemisphere, and the third dis- 
covery outside of Europe, the first being that in northern Siberia 
by Keyserling,3 the second that in the Himalayas of India, by 
Strachey,‘ and later described by Salter.5 Nothing more was 
done with the Trias in America until the Survey of the Fortieth 
Parallel discovered it in the Star Peak range of Nevada, where 
Meek® thought he recognized some Californian species. Shortly 
after this Lower Trias was discovered in southeastern Idaho, by 
the Hayden Survey, and described by Dr. C. A. White;’ no 
Californian species were found here, but this discovery proved 
the occurrence in the West of a Lower Triassic fauna like that of 
the Asiatic region. 
The next publication on the Californian Trias was by E. von 
Mojsisovics in Arktische Triasfaunen,? in which some of Gabb’s 
species are compared with ammonites from Siberia, and the 
relations of the American faunas to those of the Arctic-Pacific 
province are discussed. 
t Published by permission of the Director of the United States Geological Survey. 
2 Paleont. Calif., I, pp. 19-35. _ 
3 Bull. phys.-math. de l’Acad. Sci. de St. Petersbourg, Tome V, No. 11. 
4R,. STRACHEY: Quart. Jour. Geol. Soc. (London), Vol. VII, pp. 242-310, 1851. 
5J. W. SALTER (and H. F. BLANForD), Paleontology of Niti in the Northern 
Himalayas, 1865. te 
© Geol. Exp. Fortieth Parallel, Vol. IV, Part I, 1877. 
7U. 8S. Geol. and Geol. Surv. Terr., Vol. XII, An. Rep., Part I, 1883. 
®Mém. Acad. Impér. Sci. St. Petersbourg, VII Ser., Tome XX XIII, No. 6, 1886. 
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