VAUGHAN.l UPPER CRETACEOUS FORMATIONS. 27 
Fossils collected / 1-2 miles southeast of Eagle Pass, on the road /<> Laredo 
(loco/ ■/■/// No. 274) . 
Anemia sp. 
Camptonectes sp. 
J J ma sp. 
Trigonarca cuneata Gabb. 
Cardium sp. Cf. C. eufalense Conrad. 
Tellina sp. 
Corbula sp. 
Dentalium sp. 
Sphenodiscua pleurisepta (Conrad), a variety in which the abdomen becomes 
rounded at an early stage. 
According to Mr. Stanton, there is in the National Museum a small 
collection of fossils obtained in the neighborhood of Eagle Pass by Mr. 
J. Owen. He collected Exogyra costata at localities 1 mile southeast 
and 4 miles east of Eagle Pass. At the first locality he also collected 
a species of Volutomorpha and other Ripley forms. 
Beds composed of brownish sandstone, with occasional beds of fos- 
sils, were found along the road to Laredo until about 30 miles from 
Eagle Pass (about 26 miles in a straight line). The following is a list 
of the fossils collected, with their localities: 
Fossils collected 5 miles southeast of Eagle Pass (locality No. 275). 
Ostrea cortex Conrad?, immature specimens. 
Area sp. 
Fossils collected 14 1-2 miles southeast of Eagle Pass {locality No. 276). 
Ostrea cortex Conrad. 
Fossils collected 18 1-2 miles southeast of Eagle Pass (locality No. 277) . 
Ostrea cortex Conrad. 
Anomia sp. , same as species from locality No. 273. 
Cardium sp. Cf. C. eufalense Conrad. 
Mactra sp. Cf. M. warreneana M. and H. 
Pholadomya n. sp. 
Turritella sp., small casts. 
Nautilus dekayi Morton. 
Sphenodiscus pleurisepta (Conrad). Typical and abundant. 
"The collection evidently belongs to the same subfauna which is 
more closely related to the Ripley than to any other. The facts that 
it is in beds that overlie those containing typical Ripley fossils, and 
that a considerable proportion of the species are peculiar to these beds, 
are strong indications that we may have here more recent Cretaceous 
beds than the latest Ripley beds of Mississippi, Alabama, and other 
portions of the Gulf Coast region. ,, This idea has already been 
advanced by Mr. Dumble. 1 (Stanton.) 
Bull. <;«■<>!. Soe. America, Vol. Ill, 1892, pp. 219-230. 
