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

Corymbograptus

Classification

    Phylum:  
Hemichordata
    Class:  
Pterobranchia
    Order:  
Graptoloidea
    Superfamily:  
Unknown
    Family:  
Phyllograptidae
    Formal Genus Name and Reference:  
Corymbograptus Obut & SOBOLEVSKAYA, 1964, p. 27
    Type Species:  
*Didymograpsus v-fractus SALTER, 1863a, p. 138, OD


Images

(Click to enlarge in a new window)

Fossil Image
Fig. 193,3a-b. * C. v-fractus (Salter), 3a, neotype, BU 1005a, Baltograptus jacksoni Biozone, Buttermere, Skiddaw Slates, Cumbria, UK (Rushton, 2011, fig. 1A), 3b, BU 1005b, proximal end of larger specimen, scale bars, 1 mm (Rushton, 2011, fig. 1D), ——Fig. 193,3c-d. C. v-fractus tullbergi (Monsen, 1937), drawings from latex cast, counterpart of holotype, PMO K0484, reverse view (c) and PMO 59957 obverse view (d), Oslo Region, Norway, scale bars 1 mm (new), ——Fig. 193,3e. C. retroflexus (Perner, 1895), OMR 54919, proximal end in reverse view, Drahouš, Czech Republic, scale bar, 1 mm (new)


Synonyms



Geographic Distribution

China, UK, Czech Republic, Norway, Sweden, Canada, USA, Argentina, ?Bolivia


Age Range

    Beginning Stage in Treatise Usage:  
Lower Ordovician (Floian, Cymatograptus protobalticus Biozone)
    Beginning International Stage:  
Floian
    Fraction Up In Beginning Stage:  
0
    Beginning Date:  
477.08
    Ending Stage in Treatise Usage:  
Middle Ordovician (Darriwilian, Corymbograptus retroflexus Biozone)
    Ending International Stage:  
Darriwilian
    Fraction Up In Ending Stage:  
0
    Ending Date:  
458.18


Description

Deflexed, two-stiped phyllograptid with distally distinctly widening stipes, proximal development isograptid, dextral, low prosicular origin of th $1^{1}$, crossing canals low on sicula, sicula long and slender as in Tshallograptus with mitre-shaped prosicula




References

Obut, A. M., & R. F. Sobolevskaya. 1964. Graptolity ordovika Taimyra. Nauka. Moskva. 91 p. In Russian.


Museum or Author Information

BU, OMR, PMO, Rushton, 2011, Rushton, 2011, Monsen, 1937, Perner, 1895