WILLIAMS AN 
KINDLE 
rD ] FAUNULES OF GULF BROOK SECTION. 101 
Mr. H. 8. Williams makes the following statement concerning the 
occurrence of Camarotmchia cf. eximia: 
There begins at zone 43 a fauna presenting some new features. The Camarotcechia 
is reported as C. cf. eximia. It resembles the form described by Hall as Rhynchonella 
contracta var. saxatilis which is said to present valuable characters connecting 
forms clearly referred to the New York species, R. contracta, and to young forms 
of R. eximia. The specimens in the Leroy Brook zone are small in size and resemble 
young forms of R. eximia, but some of the larger sized specimens may be referred to 
jR. contracta. In the calcareous beds the smaller sized specimens are abundant. In the 
shale and ferruginous bands the form called contracta, with somewhat coarser and 
fewer plication and more abrupt and decided fold and sinus appears. 
Zone JfJf of Gulf Brook section (H55 J.).— Sixty -five feet of barren 
beds follow the zone 43. 
Zone 45 of Gulf Brook section (14-55 A). — This zone contains the 
following species: 
Faunule of zone 45 of Gulf Brook section {1455 A). 
1. Camarotcechia cf. eximia (abundant). 
2. Spirifer disjunctus (abundant). 
3. Dipterus sp. (rare). 
This faunule is interesting, because Sp. disjunctus makes its first 
appearance in the section at this horizon. 
Zone 1±6 of Gulf Brook section (1455 A). — Zone 45 is followed by 
100 feet of nearly barren beds. 
Zone Jf7 of Gulf Brook section (1455 A). — Only one species, Spirifer 
disjunctus, was found at this horizon. 
Zone 4,8 of Gulf Brook section (1455 A). — This zone is composed of 
55 feet of barren sandy beds. 
Zone 4-9 of Gulf Brook section (lift 5 A). — Resting on the preceding 
zone are 10 feet of thin-bedded sandstones containing the following 
species: 
Faunule of zone 49 of Gulf Brook section (1455 A) . 
1. Camarotcechia cf. eximia (rare). 
2. Spirifer disjunctus (rare). 
3. Leptodesma sp. (rare). 
Zones 50 to 59 of Gulf Brook section (1455 A). — These zones include 
the lowest "red beds" of the section, which are dull red to purplish 
rather than red. The fossils occuring in them are mostly fragmentary 
in character. 
Zone 60 of Gulf Brook section (1455 A). — The 2 feet of dark purple 
sandstone of this zone contain Camarotcechia cf. eximia and Spirifer 
disjunctus. Both species are abundant. 
