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Inouyina
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Uncertain
Superfamily:
Dalmanitacea
Family:
Uncertain
Formal Genus Name and Reference:
Inouyina POLETAEVA, 1936
Type Species:
I. quadratica
Images
(Click to enlarge in a new window)
Synonyms
Geographic Distribution
Low.Sib. (W. Sayan Mts.)
Age Range
Beginning Stage in Treatise Usage:
Low.M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
Low.M.Cam.
Ending International Stage:
Wuliuan
Fraction Up In Ending Stage:
100
Ending Date:
504.5
Description
Glabella convex, rectangular, sides parallel to slightly rounded front, with 4 pairs of lateral furrows, anterior 3 pairs short, straight, posterior pair complete, curving back to touch occipital furrow on mid-length, eye ridges narrow, palpebral rims and furrows distinct, no preglabellar field, narrow anterior border furrow curves into preglabellar furrow, anterior border medium wide, convex, downsloping, eyes of medium size, near mid-length of glabella, fixigenae convex, horizontal, with palpebral areas 0.7 of glabellar width, posterior areas broadly (exsag.) triangular, more than 0.7 of length of occipital ring, librigenae, thorax and pygidium unknown, Outer surface granulose
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Uncertain
Superfamily:
Dalmanitacea
Family:
Uncertain
Formal Genus Name and Reference:
Inouyina POLETAEVA, 1936
Type Species:
I. quadratica
Images
(Click to enlarge in a new window)Synonyms
Geographic Distribution
Low.Sib. (W. Sayan Mts.)
Age Range
Beginning Stage in Treatise Usage:
Low.M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
Low.M.Cam.
Ending International Stage:
Wuliuan
Fraction Up In Ending Stage:
100
Ending Date:
504.5
Description
Glabella convex, rectangular, sides parallel to slightly rounded front, with 4 pairs of lateral furrows, anterior 3 pairs short, straight, posterior pair complete, curving back to touch occipital furrow on mid-length, eye ridges narrow, palpebral rims and furrows distinct, no preglabellar field, narrow anterior border furrow curves into preglabellar furrow, anterior border medium wide, convex, downsloping, eyes of medium size, near mid-length of glabella, fixigenae convex, horizontal, with palpebral areas 0.7 of glabellar width, posterior areas broadly (exsag.) triangular, more than 0.7 of length of occipital ring, librigenae, thorax and pygidium unknown, Outer surface granulose