ILLIAMS 
KINDLE 
AN ") FAUNULKS OF TIOGA SECTION. 113 
Faunule of zone 16 of Tioga met ton (1460 A). 
[a,. abundant; c, common; r, rare.] 
Strophonella cselata. 
Orthothetes chemungensis. 
Productella cf. lachrymosa (c] 
Schizophoria striatula (a). 
5. Spirifer disjunctus (a] 
6. Glossites lingualis (r), 
7. Palseoneilo filosa (r). 
8. Platyceras sp. (r). 
Zone 18 of Tioga section (1/+60 A). — This zone affords the following 1 
pecies: 
Faunule of zone 18 of Tioga section ( 1460 A ) . 
[a, abundant; c, common; r, rare.] 
Stropheodonta (Douvillina) mucro- 
nata (r). 
Strophonella cselata (c). 
Orthothetes chemungensis (r). 
Productella lachrymosa (a). 
Schizophoria striatula (a). 
6. Atrypa spinosa (r). 
7. Cyrtina hamiltonensis (r). 
8. Spirifer disjunctus (a). 
9. Leptodesma lichas (c). 
10. L. sp. (r). 
11. Bellerophon sp. (r) . 
Zone % % of Tioga section (1460 A). — The 80 feet of beds intervening 
etween zones 18 and 24 contain few fossils, the species being forms 
omnion to these two zones. The species occurring in zone 24 are as 
allows: 
Faunule of zone 24 of Tioga section ( 1460 A ) . 
[a, abundant; c, common; r, rare.] 
Zaphrentis sp. (r). 
Stropheodonta (Douvillina) mucro- 
nata (r). 
S. sp. (a). 
4. Strophonella cselata (r). 
5. Orthothetes chemungensis (r). 
6. Productella sp. (r). 
7. Spirifer disjunctus (a). 
Zone 29 of Tioga section (14-60 A). — The species occurring in this 
one are as follows: 
Faunule of zone 29 of Tioga section (1460 A). 
[a, abundant; c, common; r, rare.] 
6. Camarotoechia stephani (c). 
7. Spirifer disjunctus (a) . 
8. Delthyris mesicostalis (a). 
9. Glossites lingualis (r). 
. Orthothetes chemungensis (c). 
Chonetes setigerus (r). 
Productella lachrymosa (a). 
. Schizophoria striatula (c). 
. Dalmanella tioga (r). 
Zone 33 of Tioga section (14-60 A). — A mass of the shells of Sp. dis- 
unctus comprises the greater part of this zone. The species recognized 
q it are as follows: 
Faunule of zone 33 of Tioga section (1460 A). 
. Productella lachrymosa (rare). 
. Camarotoechia stephani (rare). 
. Spirifer disjunctus (abundant). 
