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Iowaphyllum

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Ketophyllina
    Family:  
Endophyllidae
    Formal Genus Name and Reference:  
Iowaphyllum STUMM, 1949, p. 50
    Type Species:  
Smithia Johanni Hall & WHITFIELD, 1873, p. 234, OD, †316, NYSM, Albany


Images

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Fossil Image
Fig. 143,1a-d. *I. johanni (Hall & Whitfield), holotype, U.Dev.(Frasn.), Lime Cr. shale, Hackberry Gr., Iowa, Rockford, a, long. sec., X1.3, b, enl. view of central portion of a, X6.7, c, transv. sec., X1.3, d, enl. view of upper left portion of c, X6.7 (Oliver & Galle, 1971b).


Synonyms



Geographic Distribution

Eu.(Czech.), L.Dev.(Ems.), Australia(New S.Wales), L.Dev.(up.Ems.) or M. Dev.(low.Eifel.), Asia(Salair), M.Dev.(Givet.), N. Am.(Ky.-Mich.), U.Dev.(Frasn.), N.Am.(Iowa)


Age Range

    Beginning Stage in Treatise Usage:  
L.Dev.(Prag.)
    Beginning International Stage:  
Pragian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
412.4
    Ending Stage in Treatise Usage:  
L.Dev.(Zlichov.)
    Ending International Stage:  
Emsian
    Fraction Up In Ending Stage:  
50
    Ending Date:  
402.41


Description

Corallum aphroid, corallites with septa attenuate and mostly reaching axis in narrow tabularium, strongly dilated at boundary of tabularium and continuing across dissepimentarium as dilated septal ridges of ?endophylloid microstructure on top surfaces of dissepiments, which except at margin with tabularium are more or less horizontally based, tabulae complete or incomplete, domed, with upturned edges in places. [Possibly arachnophyllid. See also OLIVER & GALLE, 1971a, p. 212; 1971b, p. 81.]




References

Eaton, Amos, , \& Stumm, E. C., 1949, Corals of the Devonian Traverse Group of Michigan, Part II: Cylindrophyllum, Depasophyllum, Disphyllum, Eridophyllum, and Synaptophyllum: Univ. Michigan Mus. Paleontol., Contrib., v. 8, no. 3, p. 21-41, pl. 1-8.


Museum or Author Information

Oliver & Galle, 1971