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Asterocyclina

Classification

    Phylum:  
Protista
    Subphylum:  
Sarcodina
    Class:  
Reticularea
    Subclass:  
Granuloreticulosia
    Order:  
Foraminiferida
    Suborder:  
Rotalina
    Superfamily:  
Orbitoidacea
    Family:  
Discocyclinidae
    Formal Genus Name and Reference:  
Asterocyclina GÜMBEL, 1870, *840, p. 689. [nom. subst. pro Asterodiscus SCHAFHAUTL, 1863 (non EHRENBERG, 1840; non Asteriacites SCHLOTHEIM, 1820)
    Type Species:  
Asteriacites ophiurus SCHLOTHEIM, 1820, p. 324 [was Asterodiscus pentagonalis Schafhäutl, 1863, *1638, p. 107, = *Calcarina? stellata D'ARCHIAC, 1846, *37, p. 199, OD (M) - See footnote in Desc.]


Images

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Fossil Image
Fig. 587,3a. *A. stellata (d'Archiac), Lutet.-Auvers., Fr., ext. view, X4 (*2120). -- Fig. 587,3b,c. A. georgiana (Cushman), U.Eoc. (Ocala), USA, vert. and equat. secs., X40 (*2113b)


Synonyms



Geographic Distribution

Eu.-Indo-Pac.Reg.-N.Am.-S.Am.


Age Range

    Beginning Stage in Treatise Usage:  
M.Eoc.
    Beginning International Stage:  
Lutetian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
48.07
    Ending Stage in Treatise Usage:  
U.Eoc.
    Ending International Stage:  
Priabonian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
33.9


Description

Test stellate, with radial zones of elongate equatorial chambers in equatorial plane. (The name Asteriacites was published by VON SCHLOTHEIM in 1813 (Taschenb. Mineralogie, v. 7, p. 68, 109) a, designation of In asterozoan (p. 68) and of a foraminifer (p. 109). In 1820 the same author (Die Petrefactenkunde, p. 324) referred to the echinoderm as Asteriacites, interpreted by NEAVE as a lapsus (pro Asteriacites SCHLOTHEIM, 1813, p. 68). Then, in 1822 SCHLOTHEIM again published Asteriacites (Petrefactenkunde Nachtrag 1, p. 71) as the nJme for his (l813, p. 109) foraminifer. The ambiguous application of Asteriacites in 1813 is resolved by fixing it herein as the name for an ophiuroid (p. 68), with type-species by subsequent monotypy as Asteriacites ophiurus SCHLOTHEIM, 1820, p. 324. Asteriacites SCHLOTHEIM, 1822 (type, A. patellaris) is a junior homonym, cited properly as (non Asteriacites SCHLOTHEIM, 1820).]




References



Museum or Author Information