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Homalophyllum

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Rugosa
    Order:  
Stauriida
    Suborder:  
Streptelasmatina
    Family:  
Streptelasmatidae
    Subfamily:  
Homalophyllinae
    Formal Genus Name and Reference:  
Homalophyllum SIMPSON, 1900, p. 221
    Type Species:  
Zaphrentis ungula Rominger, 1876, p. 151, OD, †8619, UMMP, Ann Arbor, see STUMM, 1965, p. 23


Images

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Fossil Image
Fig. 93,1a,b. *H. ungula (Rominger), holotype, L.Dev., Jeffersonville Ls., coral zone, Ind., Falls of the Ohio, a,b, calical side views, X1 (Stumm, 1965).


Synonyms



Geographic Distribution

N.Am.(Ind.-Ky.)


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:  
L.Dev.
    Ending International Stage:  
Emsian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
394.3


Description

Solitary, at least in early stages calceoloid, with flattened side cardinal, or somewhat compressed in alar septal plane, septa numerous, long, thickened to contiguity in wide marginarium and in axial region, but in calice may leave narrow trenchlike space in alar septal plane, counter septum taller or thicker, cardinal septum less tall, than others, cardinal septum in deep fossula extending to axis into axial zone of septal thickening that forms nonspongy axial structure, no dissepiments, minor septa not contratingent




References

Simpson, G. B., 1900, Preliminary descriptions of new genera of Palaeozoic rugose corals: N.Y. State Mus., Bull., v. 8, no. 39, p. 199-222, textfig. 1-45.


Museum or Author Information

Stumm, 1965