ILLUSTRATIONS 



I'l'ATK I'AI IN(; l'A(iK 



I. Map sho\viii<:; Distribution of Eocene Deposifs in Miirylunil ;il 



IF. Views of Sui'fiicc of Kocene Country 44 



I''ii;'. I . — i'"iirni- mikI wood-lunds alon<; South i;i\ it 44 



" ;.'. — Furni-liuuls near AiinajKilis Wiiti-rworKs 44 



III. \'ie\vs of Eocene Sections 48 



Fig. 1. — Zones 2 to O at nioutli of Aquia Creeiv 48 



" 2. — BloclvS of Zone 0, larijeiy composed of TurrUelln 



iiiorto/ii 48 



IV. Views of I'^oceni' Sections 50 



Fig. 1. — Fort Washington lilulT, liasal Eocene overl\ing 



Cretaceous 50 



Fig. 2. — Zones 2 to 4 at base of Atiiiia Creek blulf 50 



V. General Columnar Section of Eocene Deposits in Maryland 04 



VI. Local Columnar Sections of Eocene Deposits in the Potomac 



Valley 08 



VII. Views of Eocene Sections 7:3 



Fig. 1. — Lower Eocene Deposits on Severn River 73 



" 3. — Indurated layer of Upper Marlboro, overlying Bryo- 



zoau Sand 73 



VIII. Views of Eocene Sections 84 



Fig. 1 Contact of Nanjemoy and Aquia Formations in A'alley 



of Beard Creek, Anne Arundel County 84 



Fig. 3. — Contact of Nanjemoy and Aquia Formations at Upper 



Marlboro 84 



IX. Views of Eocene Sections 88 



Fig. 1. — Railroad Cut near Upper Marlboro showing Nanjemoy 



Formation overlain by later deposits 88 



Fig. 3. — Popes Creek bli;tf showing Zone IT overlain by 



Miocene Diatomaceous earth 88 



X, XI. Reptilia 203-263 



XII-X V. Pisces 204-267 



XVI. Artbropoda — Crustacea 268 



XVII-XIX. Mollusca— Cephalopoda 300-271 



XX-XXVIII. Mollusca— Gastropoda 272-280 



XXIX. Mollusca — Gastropoda and Scaphapoda 281 



XXX-LVII. Mollusca— Pelecypoda 282-309 



LVIII. MoUuscoidea — Brachiopoda 310 



LIX, LX. MoUuscoidea— Bryozoa 311-312 



LXI. Echinodermata and Coelenterata 318 



LXII, LXIII. Protozoa — Foraminif era 31 4-315 



LXIV. Protozoa — Foraminifera, and Plautae 316 



