AND CAINOZOIC DINOFLAGELLATE CYSTS" 15 



Meiourogonyaulax superornata (W. Wetzel) Sarjeant, comb, nov., =Gonyaulax 

 superornata W. Wetzel, 1966 ; 869-870, pi. 16 figs 8a-b. Middle Jurassic, 

 Germany. 



Polysphaeridium belgicum Sarjeant, sp. nov., = Hystrichosphaeridium fluctuans 

 sensu Pastiels, 1948 ; 40, pi. 3 fig. 16, non Eisenack, 1938 ; 230-1, pi. 16 fig. 1 

 (Pastiels wrongly cites this as Eisenack 1937). Holotype : the specimen 

 figured by Pastiels, 1948 ; pi. 3 fig. 16. Dimensions : shell 30 x 35[jl, appen- 

 dages 12 [x long, overall span 60 [x. Eocene — Artesian well, Gand, Belgium. 



Psaligonyaulax apatela (Cookson & Eisenack) Sarjeant, comb, nov., =Scrini- 

 odinium apatelum Cookson & Eisenack, 1960b ; 249, pi. 37 figs. 12-13. Upper 

 Jurassic, Australia. 



Psaligonyaulax simplicia (Cookson & Eisenack) Sarjeant, comb, nov., =Rottnestia 

 simplicia Cookson & Eisenack, 1961 ; 42, 44, pi. 2 figs. 3-4, text-figs. 1 e-f. 

 Eocene, Rottnest Island, Australia. 



Rhaetogonyaulax chaloneri (Sarjeant), comb, nov., = Gonyatdax chaloneri 

 Sarjeant, 1963a ; 354, text-figs. 2 (right), 3. Upper Triassic, England. 



IV. GENERIC REALLOCATIONS PROPOSED JOINTLY BY 

 R. J. DAVEY C. DOWNIE W. A. S. SARJEANT & G. L. WILLIAMS 



Areoligera galea (Maier) Davey, Downie, Sarjeant & Williams, comb, nov., 

 = Galea galea Maier, 1959 ; 306, pi. 29 fig. 4. (Transferred to Baltisphaeridium 

 by Sarjeant, 1964 ; 176). Oligocene, Germany. 



Areoligera lychnea (Maier) Davey, Downie, Sarjeant & Williams, comb, nov., 

 =Galea lychnea Maier, 1959 ; 310, pi. 30 fig. 6. (Transferred to Baltisphaeri- 

 dium by Sarjeant, 1964 ; 176). Miocene, Germany. 



Areoligera twistringensis (Maier) Davey, Downie, Sarjeant & Williams, comb, 

 nov., =Galea twistringensis Maier, 1959 ; 308-9, pi. 30 figs. 3-4. (Transferred 

 to Baltisphaeridium by Sarjeant, 1964 ; 176). Oligocene, Germany. 



Cleistosphaeridium ashdodense (Rossignol) Davey, Downie, Sarjeant and 

 Williams, comb, nov., = Hystrichosphaeridium ashdodense Rossignol, 1962 ; 

 132, pi. 2 fig. 2. (Transferred to Baltisphaeridium by Downie & Sarjeant, 1964; 

 87. According to Wall 1967 ; 109, this species is a synonym of Lingulodinium 

 machaerophorum). Quaternary, Israel. 



? Cleistosphaeridium danicum (W. Wetzel) Davey, Downie, Sarjeant & Williams, 

 comb, nov., = Areoligera danica W. Wetzel, 1952 ; 396-7, pi. A fig. 5, text-fig. 

 8. (Transferred to Hystrichosphaeridium by W. Wetzel, 1955 ; 34 ; transferred 

 to Baltisphaeridium by Downie and Sarjeant, 1963 ; 91). Paleocene, Denmark. 



Cleistosphaeridium echinoides (Maier) Davey, Downie, Sarjeant & Williams, 

 comb, nov., = Hystrichosphaeridium echinoides Maier, 1959 ; 318-19, pi. 32 

 figs. 5-6. (Transferred to Baltisphaeridium by Downie & Sarjeant, 1963 ; 91). 

 Oligocene, Germany. 



