20 CALIFORNIA ACADEMY OF SCIENCES. [Proc. 3D Ser. 



to that already described for Oregon and California. This 

 was the view held by Dawson (1890) prior to the recogni- 

 tion of the fact in Californian deposits. Similarly the 

 Cretaceous deposits upon the mainland of British Columbia 

 are said to occupy basins in older metamorphic rock. 



South of Puget Sound massive beds of conglomerate 

 occur along the Columbia River, which may belong with 

 those of the upper portion of the Nanaimo Group. They 

 contain few fossils ; yet such as they are they may well be 

 taken to support this view. 



yl?^d:^//«-b earing deposits are reported from different 

 points along the Alaskan coast (Dall, 1895-96), as at Cook's 

 Inlet, Kodiak Island, the Alaskan peninsula, etc. Whether 

 they belong to the Cretaceous or Jurassic age has not been 

 settled; yet undoubtedly some of the species are of Creta- 

 ceous type. Chico deposits are now known to occur near 

 the mouth of the Yukon River, Alaska. Much of the 

 rock is a shale, either clay or calcareous, but limestones, 

 sandstones, and even conglomerates occur with Mesozoic 

 fossils. ylwc^//rt-b earing rocks are also reported from 

 Porcupine, Lewis, and Yukon rivers. 



5. Southern Occurrences. 



Southward from California there are but few deposits 

 known that can be classed as belonging to the Pacific 

 province, which will be mentioned here. 



Near Catorce, in the state of San Luis Potosi, Mexico, 

 an Attce//a-hed.rmg formation has been described (Felix 

 and Lenk, 1890), which Dr. Stanton (1895, pp. 25-27) 

 thinks is equivalent in part to the Knoxville. Also in 

 southern Mexico are beds that have been referred to the 

 Lower Cretaceous, and are thought to represent a portion 

 of the Knoxville ; but too little is known of these deposits 

 for exact correlation. 



Upon the island of Quiriquina, off the west coast of Chili, 

 Upper Cretaceous deposits occur resting upon schists of un- 

 certain age, and in turn overlaid by Tertiary beds. The 

 Cretaceous deposits consist of calcareous and glauconitic 



