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LOWER CRETACEOUS DEPOSITS CALIFORNIA AND OREGON

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CONTENTS<br />

Page<br />

Faunas of the Paakenta group 44<br />

General statement • 44<br />

Cottonwood district 46<br />

Identity of group 49<br />

Distribution of the Paakenta group 49<br />

General statement 49<br />

Yolla Bolly basin 49<br />

Wilbur Springs 51<br />

Morgan Valley, Lake County - 51<br />

Berry easa Valley, Napa County 52<br />

Pope Valley 52<br />

Napa Junction 52<br />

Mount Diablo district 52<br />

Berkeley Hills 53<br />

Santa Clara Valley 53<br />

Diablo Range 54<br />

Santa Lucia Range • 55<br />

Santa Barbara County 55<br />

Oregon Cretaceous areas 56<br />

General statement 56<br />

The Myrtle formation 66<br />

More northern areas 59<br />

San Juan Islands ••••••••— 59<br />

British Columbia<br />

60<br />

Alaaka<br />

00<br />

Features of the Horsetown group<br />

Type district<br />

01<br />

Divisions of the Horsetown group<br />

03<br />

General statement. ®<br />

Cottonwood beds<br />

Hulenbede<br />

63<br />

fl Restricted Horsetown areas<br />

7<br />

General statement<br />

69<br />

Queen Charlotte Islands 70<br />

Faunal contrasts in the Shasta series 71<br />

General statement 71<br />

Sources of the faunas — 72<br />

Diaatrophic history 74<br />

Correlations 76<br />

General statement 76<br />

Paakenta group 76<br />

Horsetown group. 78<br />

Mexico and Texas<br />

Argentina and Chile<br />

European sections.<br />

78<br />

Southwestern Asia<br />

Faunal relations<br />

General statement<br />

81<br />

Diverse sources 84<br />

General Summary • 8®

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