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CENOZOIC AND CRETACEOUS ECHINOIDS 

 FROM TRINIDAD AND VENEZUELA 



By C. WYTHE COOKE 



Research Associate, Smithsonian Institution 



(With 14 Plates) 

 SOURCES OF INFORMATION 



Most of the fossils described herein were received by the United 

 States National Museum in 1959 and i960 from Richard L. Casa- 

 nova as an exchange with the Paleontological Research Laboratory at 

 Statesville, N. C. The Museum also contains a large collection of 

 West Indian echinoids obtained many years ago from R. J. L. Guppy. 

 This includes not only Guppy's own specimens from Trinidad but also 

 the Cleve collection, chiefly from St. Bartholomew and Anguilla, 

 which was reported on by G. H. Cotteau (1875) and was restudied by 

 Jackson (1922). Other types from the Caribbean region in the Na- 

 tional Museum are those of Jackson (1917, 1918, 1937) from the Canal 

 Zone and Costa Rica and from Mexico. Most of my own types from 

 Venezuela (Cooke, 1941a), Colombia (Cooke, 1955), Guatemala 

 (Cooke, 1949b), Peru (Cooke, 1949a), and Panama (Cooke, 1948) 

 are in the National Museum, as well as the large collections from the 

 Cretaceous and Cenozoic formations of the United States (Cooke, 

 1941b, 1942, 1946, 1953, 1959), including the types of W. B. Clark 

 and Twitchell's (1915) monograph. 



The echinoid faunas of much of the West Indian region are well 

 known. The most comprehensive papers are by Cotteau (1875) on St. 

 Bartholomew and Anguilla, Jackson (1922) on the West Indies, 

 Egozcue y Cia (1897) and Sanchez Roig (1923, 1926, 1949) on Cuba, 

 and Arnold and H. L. Clark (1927, 1934) on Jamaica. 



Little has been published about the echinoids of Trinidad and 

 Venezuela. The first publication is the description by Guppy (1866) 

 of Echinolampas ovum-serpentis, later called Haimea, from Trinidad. 

 Jackson (1922) added one new species, Peronclla mirahilis, here re- 

 ferred to WeishordcUa, also from Trinidad. Seventeen species, for 

 the most part from Venezuela, were described as new by Jeannet 



SMITHSONIAN MISCELLANEOUS COLLECTIONS, VOL. 142, NO. 4 



