172 Papers from the Marine Biological Laboratory at Tortugas. 



List of Fossils from near Fort Latuicrdale {George C. Maison, collector). 

 Locality: South drainage ditch, 8 miles from Fort Lauderdale. 

 Pecten irradians Lam. Chione cancellata Linn. 



Leevicardium serrattim Linn. 



Locality: 7 miles from Fort Lauderdale, south ditch. 



Cerithium thomasiae Sowerby. Transennella caloosana Dall. 



Phacoides pennsylvanicus Lmn. Anomalocardia caloosana Dall. 



trisulcatus Conrad. Chione cancellata Linn. 



Divaricella densata Wood. Moerella sp. 



Locality: 6.5 miles from Fort Lauderdale, Florida, northern drainage ditch. 



Bulla striata Brug. Avicula atlantica Lam. 



Conus proteus Hwass. Cardium isocardia Linn. 



Marginella apicina Menke. Laevicardium serratum Linn. 



Melongena corona Linn. Phacoides pennsylvanicus Linn. 



Cerithidea turrita Stearns. Semele sp. 



Pyramidella dolabrata Lamarck. Phacoides trisculatus Say. 

 Strombus leidyi Heilprin. (Hitherto amiantus Dall. 



known only from the Pliocene.) Divaricella densata Wood. 



Cerithium muscarum Say. Chione cancellata Linn, 



thomasiae Sowerby. Dosinia elegans Conrad. 

 Cerithium prob. littoratum Bom, junior. Anomalocardia caloosana Dall. 



Modulus floridanus Conrad. Macoma brevifrons Say. 



Area auriculata Lam. Erv-ilia (4 lots). 



Pecten irradians Lam. Mnerella sp. 



Two warm-water non-reef-building corals, Siderastrea radians and 

 Porites divaricata, were obtained from the well at Delray, depth 118 feet. 

 This place is shghtly north of Hillsboro Inlet, but slightly south of the 

 latitude of the Caloosahatchee exposures and considerably south of those 

 around Charlotte Harbor. It appears that in Recent time the waters 

 may have been cooled somewhat more. 



SOUTHWARD EXTENSION OF BURIED SANDS, 



The intergradation between both the coquina and the Miami oolite 

 with arenaceous shell marls has already been described, also the inter- 

 bedding of siliceous sands with the predominantly calcareous material 

 has been mentioned. On the east coast south of Delray, the surface, 

 except a surficial coating of sand, is formed by the Miami oolite and the 

 Key Largo limestone; on the west coast by the Lostman River limestone ; 

 and that of the keys west of Bahia Honda by the Key West oolite. 

 Beneath these limestones, however, are sands probably in part Pleisto- 

 cene and in part Pliocene in age. 



The following well records will show the southward extension of 

 these buried sands: 



Depth. ! Thickness. 



Well at Fort Lauderdale; P. N. Bryan, owner; record furnished by 



Edwin T. King: ' Feel. Feel. 



Sand o to 



Oolitic limestone (Miami oolite) 



Sand 



Limestone 



Sand and gravel 



Hard white limestone 



Sand and gravel 



Limestone, in alternating harder and softer layers 



2 14 12 



14 30 16 



30 30.5 0.5 



30.S 68.5 38 



68.5 69-5 I 



69. s 100. 5 31 



100.5 108.5 8 



Well at Dania; property of town; record furnished by Edwin T. King: 



Surface sands o to 6 6 



Oolitic limestone {Miami oolite) 6 40 40 



Blue mud with some gravel 46 80 34 



Hard limestone 80 88 8 



