TERTIARY FORMATIONS, 219

Nucula proxwima Say. Phacoides crenulatus Conrad.
Ostrea compressirostra Say. Phacoides contractus Say.
Ostrea sculpturata Conrad. Phacoides cribrarius Say.
Pandora crassidens Conrad. Phacoides trisulcatus Conrad.
Panopea reflera Say. Plicatula densata Conrad.
Pecten eboreus Conrad. Plicatula marginata Say.
Pecten jeffersonius Say. Semele subovata Say.
Pecten jeffersonius var, edgecomb- Tellina declivis Conrad.
ensis Conrad. Venericardia granulata Say.
Pecten jeffersonius var. septenarius Venericardia tridentata Say.
Say. Venus rileyi Conrad.
Pecten madisonius Say. Venus tridacnoides Lamarck,
Phacoides anodonta Say. Yoldia laevis Say.

RIGHT BANK OF TAR RIVER, 125 YARDS BELOW BELL'S BRIDGE,
Pleistocene:

Fret.
Coarse gray sand, about....... tbe eTN ES Oe Seale oes aes eapab ene Sao 10
Miocene (St. Marys) :
Gray to drab clay, somewhat resembling diatomaceous earth..... 12
Indurated marl layer in which all the shells have been removed,
leaving only moulds................ rite L gio ivan por haie Fahey es 1
Shell bed, shells in matrix of olive-green to brown sand. Pec-
tens especially abundant. Some phosphatic pebbles, and some
grains of glauconite occur in the matrix...................... 9
No: €xPOsUureto WHEE 5 oss vas hac Maes Oo ee whe eere ke 5
River was 7 feet above normal at time this section was taken.
FOSSILS FROM TAR RIVER, 125 YARDS BELOW BELL'S BRIDGE,
CRUSTACEA: Corbula inaequalis Say.
Balanus concavus Bronn. Mulinia congesta Conrad.
GASTROPODA: Ostrea sculpturata Conrad,
Crepidula fornicata Linné. : Phacoides contractus Say. :
Marginella bella Conrad. Phacoides crenulatus Conrad, ;
ScaPHOPODA : Phacoides trisulcatus var. multistri-
Dentalium attenuatum Say. atus Conrad.
PeLrcyropa : Venericardia granulata Say.
Arca improcera Conrad. ‘

RIGHT BANK OF TAR RIVER, 2} MILES BELOW BELL'S BRIDGE.
Pleistocene: Fret.

Loamy gray sand containing quantities of small pebbles in cer-
CAIN DTA CON aac Lat Wb ane gbke WEIR NGI U's Sie Fikes GOURD 10-12

Miocene (St. Marys) :

EARRGCGVAD CAV es losses alee e tLe vow ret se Pear Trae Oe ig
Sandy clay, containing impressions of shells..................0655 1
Tron-stained, slightly indurated sand, containing many shell im-
Blue argillaceous sand, containing numerous fossils well pre-
Tron-stained sand without fossils exposed to water’s edge......... 6