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Gracilopora

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Tabulata
    Order:  
Favositida
    Suborder:  
Favositina
    Superfamily:  
Pachyporicae
    Family:  
Pachyporidea
    Formal Genus Name and Reference:  
Gracilopora CHUDINOVA, 1964, p. 31
    Type Species:  
G. acuta, OD, †54, coll. 887. PIN, Moscow, =Thamnopora yavorskyi DUBATOLOV, 1959, p. 75, † ? in Dubatolov Coll., VNIGRI, Leningrad, fide Mironova, 1974a, p. 72


Images

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Fig. 391,la,b. *G. yavorskyi (DUBATOLOV), CHUDINOVA'S holotype, Eifel., Salairka horizon, left bank R. Maly Bachat, 500 to 600 m. E. of bridge over R. Salairka; a,b, tramv., long. secs., X 1.3, X 2.7 (Chudinova, 1964).


Synonyms



Geographic Distribution

Asia (Kuzbas-NE. USSR-Urals).


Age Range

    Beginning Stage in Treatise Usage:  
L.Dev.
    Beginning International Stage:  
Lochkovian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
419
    Ending Stage in Treatise Usage:  
M. Dev. (Eifel.)
    Ending International Stage:  
Eifelian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
385.3


Description

Corallum of moderately slender, cylindrical branches; corallites very slender, numerous, polygonal or rounded polygonal in cross section and curving slowly at first outward from axis of branch to open at surface at an acute or closer to right angle; calices with sharp lower lip and gently sloping, bluntly thickened upper lip; walls thin in axial zone, gradually thickening toward surface of branch; stereozone latently radially fibrous with faintly marked median suture between corallites; pores uniserial; small septal spines may be present; tabulae complete, horizontal, or rarely inclined [see DUBATOLOV, 1969, p. 112].




References



Museum or Author Information