GEOLOGY AND PALEONTOLOGY OF CANAL ZONE


No. USGS
used in Cenozoic Field this No. No. report


No. USGS
used in Cenozoic this No. report


42g 1 18832


203 215


42h







42i


 Description of locality



BOHIO FORMATION, GATUN LAKE AREA,
 CANAL ZONE-continued

 Barro Colorado Island, northern part
 of island, stream crossing Pearson Trail at Pearson 6, about 365 meters above mouth. Poorly sorted subgraywacke. W. P. Woodring, 1954. Barro Colorado Island, eastern part of
 island, stream east of Shannon Trail, about 365 meters southeast of Shannon 1. Somewhat calcareous coarsegrained gritty subgraywacke. W. P.
 Woodring, 1954. Larger Foraminifera.
 Barro Colorado Island, same stream
 as that for locality 54b, but 30 meters downstream. Soft muddy subgraywacke. W. P. Woodring, 1954.
 Not plotted.

 10HIO FORMATION, PACIFIC COASTAL, AREA, PANAMA
 Transisthmian Highway, 9 kilometers
 north-northwest of junction with Panamd National Highway, about 100 meters north of Continental divide. Lens of algal limestone.
 J. A. Tavelli and W. P. Woodring, 1947. Larger Foraminifera (Cole,
 1952 [1953]).
375 meters north-northwest of locality
 43. Lens of algal limestone. W. P.
 Woodring, 1949.
Transisthmian Highway, 1 kilometer
 north-northwest of junction with Panami National Highway. Lens of algal limestone. J. A. Tavelli and W. P. Woodring, 1947. Also larger Foraminifera (Cole, 1952
 [1953]).

MIDDLE MEMBER OF CAIMITO FORMATION,
 GATUN LAKE AREA, CANAL ZONE Peninsula 2 kilometers east-southeast
 of Darien. Limestone. S. M. Jones and W. P. Woodring, 1947. Larger
 Foraminifera.
East side of peninsula 1.3 kilometers
 east-southeast of Darien. Limestone. S. M. Jones and W. P.
 Woodring, 1947. Larger Foraminifera.
About 45 meters eastward up path from
 west landing at Darien. Algal limestone. S. M. Jones and W. P. Woodring, 1947. Larger Foraminifera
 (Cole, 1952 [1953]).


5908


49














50 51


6021


116


Field No.






















 44 45

























 53






 46


 Description of locality



MIDDLE MEMBER OF CAiMITO FORMATION, GATUN LAKE AREA, CANAL
 ZONE-continued

Limestone on relocated line of Panama
 Railroad opposite San Pablo. First limestone outcrop north of Caimito station, about 4 miles (6.5 kilometers) north [west] of Gamboa bridge.
 D. F. MacDonald and T. W. Vaughan,' 1911 (MacDonald, 1919, p. 539, pl.
 154). [Type locality of Lepidocyclina vaughani. First cut northwest of.
 Darien, now covered with soil and vegetation. A later collection from same locality was given the permanent number 6673.]
Trail 1.2 kilometers north of Darien.
 Calcareous tuffaceous sandstone. S.
 M. Jones and W. P. Woodring, 1947.
 Larger Foraminifera.
Field in peninsula 3 kilometers southsoutheast of Frijoles. Pebbly cal-, careous tuffaceous sandstone. S. M.
 Jones and W. P. Woodring, 1947.
 Larger Foraminifera (Cole 1952
 [1953]).
Limestone above foraminiferal marl at
 Rio Agua Salud bridge, about 0.3 mile (475 meters) north of Frijoles, relocated Panama Railroad. D. F.
 MacDonald and T. W. Vaughan, 1911 (MacDonald, 1919, p. 540, pl.
 154). Also corals (Vaughan, 1919a, p. 209). [A submerged locality, originally downstream from Rio Agua Salud culvert.] Location approximate.
Limestone 1 mile or less (0.5 kilometers) north of Frijoles on relocated Panama Railroad. D. F. MacDonald, 1911. Presumably same as
 locality 52. Not plotted.
Low islet 400 meters northeast of landing at Barro Colorado Island. Soft sandy calcareous siltstone. S. M.
 Jones and W. P. Woodring, 1947.
 Larger Foraminifera (Cole, 1952
 [1953]).
Barro Colorado Island, northeastern
 part of island, stream immediately east of laboratory clearing, 150 meters upstream from mouth at launch landing. Calcareous tuffaceous sandstone. W. P. Woodring,
 1947. Larger Foraminifera.


52 1 6024h


52a 53






54


18845 1 215a


43 I_.


17435 18375


39








109 38










41 42 43


44 45










46 47 48