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Eucidaris
Classification
Phylum:
Echinodermata
Subphylum:
Echinozoa (sea urchins, holothurians, etc.)
Class:
Echinoidea
Subclass:
Perischoechinoida
Order:
Cidaroida
Family:
Cidaridae
Subfamily:
Cidarinae
Formal Genus Name and Reference:
Eucidaris POMEL, 1883, p. 109
Type Species:
Cidarites metularia Lamarck, 1816, SD Clark & BATHER, 1909, p. 88
Images
(Click to enlarge in a new window)
Fig. 250,1a-f. E. strobilata FELL, U.Eoc.-L.Oligo., N.Z. (1-3, U. Eoc.; 4-6, L.Oligo.); 1a-f, spines, X2.8. --- Fig. 250,1g,h. E. coralloides FELL, L.Oligo., N.Z.; 1g,h, spine, lat. and top, X2.l (56
Synonyms
Cidaris, Gymnocidaris
Geographic Distribution
U.Eoc., N.Z.; Oligo., N.Z.; Mio., Fiji-?Australia-Calif.-W.Indies; Plio., Calif.; Rec., trop. and subtro
Age Range
Beginning Stage in Treatise Usage:
U.Eoc.
Beginning International Stage:
Priabonian
Fraction Up In Beginning Stage:
0
Beginning Date:
37.71
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Like Stylocidaris but madreporite slightly larger than other genital plates; primary spines typically cylindrical, truncate, otherwise fusiform or clavate, shaft abruptly trun cate, terminating in crown with central promi- nence, and with low, rounded warts disposed in regular, longitudinal series; secondary spines adpressed; tridentate pedicellariae of 2 types, valves either straight or curved.
References
Pomel, Auguste, 1883, Classification méthodique et genera des échinides vivants et fossiles: 131 p., 1 pl., Typ. Adolphe Jourdan (Alger).
Museum or Author Information
Classification
Phylum:
Echinodermata
Subphylum:
Echinozoa (sea urchins, holothurians, etc.)
Class:
Echinoidea
Subclass:
Perischoechinoida
Order:
Cidaroida
Family:
Cidaridae
Subfamily:
Cidarinae
Formal Genus Name and Reference:
Eucidaris POMEL, 1883, p. 109
Type Species:
Cidarites metularia Lamarck, 1816, SD Clark & BATHER, 1909, p. 88
Images
(Click to enlarge in a new window)
Fig. 250,1a-f. E. strobilata FELL, U.Eoc.-L.Oligo., N.Z. (1-3, U. Eoc.; 4-6, L.Oligo.); 1a-f, spines, X2.8. --- Fig. 250,1g,h. E. coralloides FELL, L.Oligo., N.Z.; 1g,h, spine, lat. and top, X2.l (56
Synonyms
Cidaris, Gymnocidaris
Geographic Distribution
U.Eoc., N.Z.; Oligo., N.Z.; Mio., Fiji-?Australia-Calif.-W.Indies; Plio., Calif.; Rec., trop. and subtro
Age Range
Beginning Stage in Treatise Usage:
U.Eoc.
Beginning International Stage:
Priabonian
Fraction Up In Beginning Stage:
0
Beginning Date:
37.71
Ending Stage in Treatise Usage:
Rec.
Ending International Stage:
Meghalayan
Fraction Up In Ending Stage:
100
Ending Date:
0
Description
Like Stylocidaris but madreporite slightly larger than other genital plates; primary spines typically cylindrical, truncate, otherwise fusiform or clavate, shaft abruptly trun cate, terminating in crown with central promi- nence, and with low, rounded warts disposed in regular, longitudinal series; secondary spines adpressed; tridentate pedicellariae of 2 types, valves either straight or curved.
References
Pomel, Auguste, 1883, Classification méthodique et genera des échinides vivants et fossiles: 131 p., 1 pl., Typ. Adolphe Jourdan (Alger).