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Tsinania
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Uncertain
Family:
Tsinaniidae
Formal Genus Name and Reference:
Tsinania Walcott, 1914
Type Species:
Illaenurus canens WALCOTR, 1905
Images
(Click to enlarge in a new window)
Fig. 266, 2. *T. canens (Walcott), China (Shantung), 2a, cran. and librigena, dorsal (exterior), 2 b, cran., profile, 2 c, d, pyg., ventral (interior), profile, all x1 (107, 315).
Synonyms
Tsinain, Tsinavia, Tsiamia
Geographic Distribution
NE.Asia
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian(Fengshan.)
Beginning International Stage:
Jiangshanian
Fraction Up In Beginning Stage:
0
Beginning Date:
491.4
Ending Stage in Treatise Usage:
Upper Cambrian(Fengshan.)
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
0
Ending Date:
486.85
Description
Cranidium subquadrate, all furrows obsolete, Pygidium rarely with pair of minute anterolateral spines, only axial furrows visible externally but 9 faint furrows on axis and pleural regions seen on interior
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Uncertain
Family:
Tsinaniidae
Formal Genus Name and Reference:
Tsinania Walcott, 1914
Type Species:
Illaenurus canens WALCOTR, 1905
Images
(Click to enlarge in a new window)
Fig. 266, 2. *T. canens (Walcott), China (Shantung), 2a, cran. and librigena, dorsal (exterior), 2 b, cran., profile, 2 c, d, pyg., ventral (interior), profile, all x1 (107, 315).
Synonyms
Tsinain, Tsinavia, Tsiamia
Geographic Distribution
NE.Asia
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian(Fengshan.)
Beginning International Stage:
Jiangshanian
Fraction Up In Beginning Stage:
0
Beginning Date:
491.4
Ending Stage in Treatise Usage:
Upper Cambrian(Fengshan.)
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
0
Ending Date:
486.85
Description
Cranidium subquadrate, all furrows obsolete, Pygidium rarely with pair of minute anterolateral spines, only axial furrows visible externally but 9 faint furrows on axis and pleural regions seen on interior