Home Plot Diversity Curves Tree of Life About Admin Login

Welcome to the Treatise on Invertebrate Paleontology!

Please enter a genera name to retrieve more information.

Search By:
and Class
and Order

Hayasakaia

Classification

    Phylum:  
Cnidaria
    Class:  
Anthozoa
    Subclass:  
Tabulata
    Order:  
Auloporida
    Superfamily:  
Syringoporicae
    Family:  
Tetraporellidae
    Formal Genus Name and Reference:  
Hayasakaia Lang, Smith, & THOMAS, 1940, p. 65, nom. subst. pro Tetrapora YABE & HAYASAKA, 1915, p. 87, non Tetrapora QUENSTEDT, 1857, a bryozoan
    Type Species:  
Tetrapora elegantula Yabe & Hayasaka, OD, figured syntype 6254, TohU, Sendai (missing)


Images

(Click to enlarge in a new window)

Fossil ImageFossil Image
Fig. 448, 3a,b. *H. elegantula (Yabe& Hayasaka), L. Perm., Chihsia Ls., Kweichow, Synan, a,b, transv., long. secs., X4 (Lin, 1962a)


Synonyms



Geographic Distribution

Asia(China), Eu. (Spits.), Asia(N.Viet Nam)


Age Range

    Beginning Stage in Treatise Usage:  
L.Perm.
    Beginning International Stage:  
Asselian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
298.89
    Ending Stage in Treatise Usage:  
L.Perm.
    Ending International Stage:  
Kungurian
    Fraction Up In Ending Stage:  
100
    Ending Date:  
274.37


Description

Corallum fasciculate with slender corallites of rounded-polygonal section, connected by horizontal tubuli arranged more or less regularly in four longitudinal rows, diagonally placed, septal spines poorly developed to absent, tabulae in two series, axial tabellae subhorizontal and complete or incomplete, and peripheral tabellae in single and in places discontinuous series of small dissepimentlike plates




References

Three indispensable indexes of Paleozoic coral genera with relevant lists of publications are: Lang, Smith, \& Thomas, 1940; Flügel, 1970; and Ivanovskix, 1973, with supplement by Bogoyavlenskaya, 1976. For Rugosa only there are also Cotton, 1973, with Supplement I published in 1974 and Supplement II in 1976, and Ivanovskiy, 1976. References to senior homonyms that have been applied to organisms other than Paleozoic corals are not included in this list, but those dated before 1966 may be found in contracted form in S. A. Neave, Nomenclator Zoologicus (1939-1975, $7 \mathrm{v} .$, Zoological Society, London). A list of full names of serials abbreviated below is to be found at the end of the Editorial Preface.


Museum or Author Information

Lin, 1962