WILLIAMS 
KINDLE 
AND"! 
EAUNULES OF CATAWISSA SECTION. 
77 
Zone 38 of Catawissa section (HS3 A). — The following species occur 
in the 4: feet of beds included in this zone: 
Faunule of zone 38 of Catawissa section {1453 A). 
[a, abundant; c, common; r, rare.] 
1. Stropheodonta cf. demissa (r). 
2. Schizophoria striatula (c). 
3. Leiorhynchus mesicostale (c). 
4. Spirifer pennatus var. posterus (a). 
5. Palaeoneilo plana (r). 
6. Pterinea chemungensis (r). 
7. Ectenodesma birostratuni (r). 
Zone 39 of Catawissa section (14-53 A). — Thirty feet of .sparingly 
fossiliferous shales separate the last zone from the succeeding. 
Zone Ifi of Catawissa section (1/+53 A). — A 6-inch band of richly 
fossiliferous rock affords the following species: 
Faunule of zone 40 of Catawissa section {1453 A). 
[a, abundant; c, common; r, rare.] 
Craniella cf. hamiltonire (r). 
Stropheodonta cf . demissa ( r) . 
Productella speciosa (c) . 
Schizophoria striatula (r). 
Pugnax pugnus (a). 
A try pa aspera (r). 
Cyrtina hamiltonensis (c). 
Spirifer pennatus var. posterus (r). 
Amboccelia gregaria (r). 
Nucula diffidens (c). 
Palseoneilo cf. brevis (r). 
12. Palseoneilo sp. (r). 
13. Leptodesma sp. (r). 
14. Mytilarca sp. ( r) . 
15. Glyptodesma cf. erectum (r). 
16. Ectenodesma cf. birostratum (r 
17. Goniophora cf. truncata (r). 
18. Cypricardella cf. gregaria (r). 
19. Bellerophon cf. meera (r). 
20. B. sp. (r). 
21. Loxonema sp. (r). 
It will be noted that nearly all of the species in this list occur in the 
Ithaca fauna. The third and fifth species (P. speciosa) and P. pugnus, 
which are the dominant forms of the faunule, are characteristic species 
of the Ithaca fauna. This is the latest faunule appearing in the sec- 
tion. No characteristic Chemung forms appear either in it or in any 
of the preceding faunules. It is to be observed also that this fauna 
ranges through approximately 1,400 feet. The pure Ithaca fauna at 
Ithaca occupies about 400 feet and the Chemung fauna begins less than 
1,400 feet above the Genesee. 
Zone 1+1-1$ of Catawissa section (11+53 A). — Olive-gray shales and 
sandstone, mostly covered and apparently barren, occupy the interval 
between the last zone and the lower "red bed." 
Zone 1+3 of Cataioissa section (11+53 A). — This zone comprises 10 feet 
of red shales, is the lowest of the " red beds," and is barren of fossils. 
It is the highest bed in which careful search was made for fossils. 
Bull. 244—05 6 
