Subfamily Ovoidinioideae

Subfamily Ovoidinioideae

Citation: Ovoidinioideae ( Norris 1978) Bujak and Davies 1983. Diagnosis:Peridiniaceans in which the episomal tabulation is bipesioid and the Kofoid second anterior intercalary plate is hexa (i.e. six-sided). The cyst wall is composed of dinosporin and lacks a calcareous layer (or layers). The archeopyle is centred about the apical region. Type genus: Ovoidinium Davey 1970; fossil - Cretaceous (Cenomanian). Fossil genera: Ascodinium Cookson and Eisenack 1960a; Cretaceous (Albian-Cenomanian). Bohaidina Jiabo 1978; Early Tertiary. (=Prominangularia Jiabo 1978; taxonomic junior synonym according to Sun Xuekun, 1994, p.70) Bosedinia He Chengquan 1984b; Late Eocene-Oligocene. (=Bosea He Chengquan and Qian Zeshu 1979; homonym -Bosedinia is substitute) Cepadinium Duxbury 1983; Cretaceous (Aptian). ?Corculodinium Batten and J.K. Lister 1988; Cretaceous (Barremian). ?Craspedodinium Cookson and Eisenack 1974; Cretaceous (Aptian-Albian). Epelidosphaeridia Davey 1969a; Cretaceous (Cenomanian). Holmwoodinium Batten 1985; Cretaceous (Barremian). Huanghedinium Zhu Shenzhao, He Chengquan and Jin Guangxing in He Chengquan et al. 1989; Early Tertiary. Leberidocysta Stover and Evitt 1978; Cretaceous (Albian-Cenomanian). Ovoidinium Davey 1970; Cretaceous (Cenomanian). (=Evittia Pocock 1972; homonym -Pocockia is substitute) (=Pocockia Lentin and Williams 1973; taxonomic junior synonym acc. Lentin and Williams, 1976, p.162) Parabohaidina Jiabo 1978; Early Tertiary. (=Conicoidium Jiabo 1978; taxonomic junior synonym according to Sun Xuekun, 1994, p.80) ?Paraperidinium Jin Guangxing, He Chengquan and Zhu Shenzhao in He Chengquan et al. 1989; Early Tertiary. ?Ripea Batten 1985; Cretaceous (?Hauterivian).

Family Peridiniaceae part 4