18 
CONTRIBUTIONS TO DEVONIAN PALEONTOLOGY, 
[bull..24£ 
Fossils were obtained from the Jefferson villi; limestone at the expos- 
ure on the north hank of the river, about half a mile below the Pitts] 
burg", Cincinnati, Chicago and St. Louis Railway bridge (1357 Al). 
The Jcffersonville limestone is exposed at low-water mark, near the 
Government jetty on the Indiana side of the river. Fossils were 
obtained from each of the the three zones of this limestone given below: 
Section 1357 B, Jeffersonville limestone on north side of Ohio River. 
Feefl 
3. Light-gray limestone 6 
2. Hard gray limestone 2 
! . Exposed at low water 3 
Near the south end of the Pittsburg, Cincinnati, Chicago and St. 
Louis Railway bridge, in Louisville, Ky., the fine-grained calcareous 
sandstones lying below the black shale arc quarried for cement. 
Three or 4 feet of rather pure limestone separate these sandy beds 
from the black shale at the upper end of the canal. The section is 
composed of the following zones: 
Section 1357 C, "/ Louisville, A'//. 
Ft. in. 
1. I .lack shale (at upper end of canal ) I 
3. Light-gray limestone 3 6 
2. Cement beds (Sellarsburg) 8 
1. Jeffersonville limestone (not exposed). 
The faunules collected from the rocks at the Ohio Falls and in the 
vicinity are as follows: 
Faunule of zone I of section 1357 A, <il Jeffersonville, Clark County, hid. 
[a. abundant: 
1. Zaphrentis gigantea (e). 
2. Z. nngula (c). 
3. Blothrophyllum decorticatum (c). 
4. Diphyphyllum sp. 
5. Thecia minor (c). 
6. Favosites hemisphericus (c). 
7. Michelinia cylindrica (c). 
S. Discina sp. (r). 
9. Stropheodonta demissa (c). 
10. S. hemispherica (c). 
11. S. (Leptostrophia) perplana (r). 
12. Chonetes sp. (r). 
13. Productella spinulicosta (r). 
14. Orthiscf. livia (r). 
15. Schizophoria striatula (r). 
ommon; r, rare.] 
L6. Gypidula romingeri var. indianensl 
(r). 
1 7. Atrypa aspera ( r) . 
18. A. reticularis (a). 
19. Cyrtina hamiltonensis (r). 
20. Spirifer arctisegmentus (r). 
21. S. euruteines ( r). 
22. S. byrnesi (r). 
23.. S. gregarins (a). 
24. Conoeardinm trigonale (r). 
25. Trochonema recti latera (r). 
26. Platyceras dumosum (r). 
27. Platyostoma lineatum (r). 
28. Proetus canaliculars (r). 
