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Eugonocare
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Dikelocephalacea
Family:
Pterocephaliidae
Formal Genus Name and Reference:
Eugonocare WHITEHOUSE, 1939
Type Species:
E, tessellatum
Images
(Click to enlarge in a new window)
Synonyms
Geographic Distribution
Austral.
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
50
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Upper Cambrian
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
100
Ending Date:
486.85
Description
Glabella truncate-tapering, eye ridges distinct, frontal area 0.3 of length (sag.) of cranidium with distinct anterior border furrow and narrow convex border, eyes of medium size, opposite center of glabella, fixigenae upsloping, with palpebral areas somewhat more than 0.5 of glabellar width, posterior areas unknown. Pygidium broadtransverse, axis narrower than pleural field, tapered nearly full length, with 5 axial rings and terminal, pleurae 5 or 6 , interpleural grooves and pleural furrows shallow, border of medium width with slight posterior median inward bend. Surface finely granulose.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Dikelocephalacea
Family:
Pterocephaliidae
Formal Genus Name and Reference:
Eugonocare WHITEHOUSE, 1939
Type Species:
E, tessellatum
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
Austral.
Age Range
Beginning Stage in Treatise Usage:
Upper Cambrian
Beginning International Stage:
Guzhangian
Fraction Up In Beginning Stage:
50
Beginning Date:
498.75
Ending Stage in Treatise Usage:
Upper Cambrian
Ending International Stage:
Cambrian Stage 10
Fraction Up In Ending Stage:
100
Ending Date:
486.85
Description
Glabella truncate-tapering, eye ridges distinct, frontal area 0.3 of length (sag.) of cranidium with distinct anterior border furrow and narrow convex border, eyes of medium size, opposite center of glabella, fixigenae upsloping, with palpebral areas somewhat more than 0.5 of glabellar width, posterior areas unknown. Pygidium broadtransverse, axis narrower than pleural field, tapered nearly full length, with 5 axial rings and terminal, pleurae 5 or 6 , interpleural grooves and pleural furrows shallow, border of medium width with slight posterior median inward bend. Surface finely granulose.