142 THE COASTAL PLAIN OF NORTH CAROLINA.

portion of which, where it passed beneath the water, is filled with an
abundance of fragile, fragmentary shells, with some perfect though
fragile specimens, as follows:

U.S. G.S. LOCALITY No. 4142.

Exogyra ponderosa Roemer. Anomia n. sp.

Trigonia n. sp. (Same as at Snow Cyprimeria depressa Conrad.
Hill, N. C.) Corbula crassiplica Gabb.

Pecten simplicius Conrad. : Bone fragment.

 

 

 

About 600 feet eat, <<

 

 

Fre. 13.—Sketch showing the undulating surface of the Black Creek formation
overlain by Pleistocene deposits ; Contentnea Creek, above milepost 26.

The presence of Exogyra ponderosa Roemer and of the Trigonia —
indicates that this horizon should be regarded as occupying a position
about the same as that at Snow Hill. ;

Tar River exhibits the beds of the formation interruptedly from
near Parker Landing, 12 miles above Greenville, to Randolph Land-

ing, 6 miles above Greenville, Winterville quadipagle. (See sketch

map of Tar River, Fig. 7, p. 101.) i

The first exposure to be seen in descending the river is at a
bluff about one-fourth mile above Parker Landing. Here the I
Creek beds, which consist of dark to black Jaminated, lignitic |
with fine micaceous sand partings, containing iron sulphide concre-
tions, rest with unconformable relations upon Patuxent beds. A de
tailed section is given on page 103.

_ The next occurrence is about one-eighth ‘nie below Parker Lar
At the base of this section a few feet of Patuxent clay appears a
the water, overlain by several feet of poorly exposed Black Creek ma
terials. These consist of laminated, dark to black clay, with partin
and thin layers of micaceous sand, containing an abundance of
in the form of seams and comminuted particles, iron sulphide
tions, and oceasional small pieces of amber. In certain of the
and seams plant remains occur in considerable numbers. =
listed below were collected :

Araucaria bladenensis Berry. sl atcigdiblonl povetiohats Berry.
Araucaria Jeffreyi Berry. — Myrica cliffwoodensis Berry.
Chondrophyllum Nordenskioldi Heer. Sequoia minor Velen. —

Eucalyptus Geinitzi (Heer) Heer. onghaieanceeer nearer
nen re ones eee Berry? ey