172 Papers from the Marine Biological Laboratory at Tortugas. 



List of Fossils front near Fort Lauderdale (George C. Matson, collector). 

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

 Pecten irradians Lam. Chione cancellata Linn. 



Laevicardium serratum Linn. 



Locality; 7 miles from Fort Lauderdale, south ditch. 



Corithium thomasise 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. 

 Conus proteus Hwass. 

 Marginalia apicina Menke. 

 Melongena corona Linn. 

 Cerithidea turrita Stearns. 

 Pyramidella dolabrata Lamarck. 

 Strombus leidyi Heilprin. (Hitherto 

 known only from the Pliocene.) 

 Cerithium muscarum Say. 



thomasiae Sowerby. 

 Cerithium prob. littoratum Born, junior. 

 Modulus floridanus Conrad. 

 Area auriculata Lam. 

 Pecten irradians Lam. 



Avicula atlantica Lam. 

 Cardium isocardia Linn. 

 Laevicardium serratum Linn. 

 Phacoides pennsylvanicus Linn. 

 Semele sp. 



Phacoides trisculatus Say. 

 amiantus Dall. 

 Divaricella densata Wood. 

 Chione cancellata Linn. 

 Dosinia elegans Conrad. 

 Anomalocardia caloosana Dall. 

 Macoma brevifrons Say. 

 Ervilia (4 lots). 

 Moerella 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 slightly north of Hillsboro Inlet, but sHghtly 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 S.\XDS. 



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: 



Sand 



Oolitic limestone (Miami oolite) 



Sand 



Limestone 



Sand and gravel 



Hard white limestone 



Sand and gravel 



Limestone, in alternating harder and softer layers 



14 

 30 

 30.S 

 68.S 

 69.5 

 100.5 



Feet. 



to 2 



14 



30 



30. S 



68.5 



69s 



100.5 



108.5 



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



Surface sands o to C 



Oolitic limestone (Miami oolite) j 6 40 



Blue mud with some gravel \ 46 80 



Hard limestone I 80 88 



Feet. 



16 

 o.S 

 38 



6 

 40 

 3 4 



