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Parakoldinioidia
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Uncertain
Superfamily:
Phacopacea
Family:
Sarkiidae
Formal Genus Name and Reference:
Parakoldinioidia Endo, in Endo & RESSER, 1937
Type Species:
P. typicalis
Images
(Click to enlarge in a new window)
Fig. 411, 1. *P. typicalis, Manch., 1a, ceph., X4, 1b, pyg., X1 (37) (LB)
Synonyms
Geographic Distribution
Upper Cambrian(Fengshanian), N.E.Asia
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian(Fengshanian)
Beginning International Stage:
Jiangshanian
Fraction Up In Beginning Stage:
0
Beginning Date:
491.4
Ending Stage in Treatise Usage:
Upper Cambrian(Fengshanian)
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
0
Ending Date:
486.85
Description
Glabella convex, faintly keeled, rectangular, sides diverging very slightly at rounded front, with 3 pairs of short lateral furrows, eye ridges narrow diagonal, palpebral furrows and palpebral rims narrow, no preglabellar field or anterior border furrow, narrow, convex triangular border, eyes below medium size, somewhat behind center of glabella, fixigenae upsloping, with palpebral areas 0.75 of glabellar width, posterior areas short, triangular, librigenae narrow, rectangular, with short genal spine. ?Pygidium semicircular, axis convex, narrower than pleural fields, tapered 0.66 of its length to narrow rounded end, with 4 axial rings and terminal, pleurae 4, crossed by broad pleural furrows, interpleural grooves obsolete, with shallow border furrow and narrow flat border. Outer surface granulose
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Uncertain
Superfamily:
Phacopacea
Family:
Sarkiidae
Formal Genus Name and Reference:
Parakoldinioidia Endo, in Endo & RESSER, 1937
Type Species:
P. typicalis
Images
(Click to enlarge in a new window)
Fig. 411, 1. *P. typicalis, Manch., 1a, ceph., X4, 1b, pyg., X1 (37) (LB)
Synonyms
Geographic Distribution
Upper Cambrian(Fengshanian), N.E.Asia
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian(Fengshanian)
Beginning International Stage:
Jiangshanian
Fraction Up In Beginning Stage:
0
Beginning Date:
491.4
Ending Stage in Treatise Usage:
Upper Cambrian(Fengshanian)
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
0
Ending Date:
486.85
Description
Glabella convex, faintly keeled, rectangular, sides diverging very slightly at rounded front, with 3 pairs of short lateral furrows, eye ridges narrow diagonal, palpebral furrows and palpebral rims narrow, no preglabellar field or anterior border furrow, narrow, convex triangular border, eyes below medium size, somewhat behind center of glabella, fixigenae upsloping, with palpebral areas 0.75 of glabellar width, posterior areas short, triangular, librigenae narrow, rectangular, with short genal spine. ?Pygidium semicircular, axis convex, narrower than pleural fields, tapered 0.66 of its length to narrow rounded end, with 4 axial rings and terminal, pleurae 4, crossed by broad pleural furrows, interpleural grooves obsolete, with shallow border furrow and narrow flat border. Outer surface granulose