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Metagraulos
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Uncertain
Superfamily:
Dalmanitacea
Family:
Uncertain
Formal Genus Name and Reference:
Metagraulos KOBAYASHI, 1935
Type Species:
Agraulos nitida WALCOTT, 1906
Images
(Click to enlarge in a new window)
Fig. 406, 6. *Metagratlos nitida (Walcott), cran., ×3 (488) (HE)
Synonyms
Geographic Distribution
China
Age Range
Beginning Stage in Treatise Usage:
M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
M.Cam.
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
50
Ending Date:
498.75
Description
M.Cam., China, Glabella subconical, unfurrowed in adult, palpebral lobes small, close to glabella, anterior in position, frontal area poorly differentiated into preglabellar field and border, anterior sections of facial sutures directed straight forward, posterior sections long, almost straight, defining large, triangular, furrowed posterior area, genal angles rounded. Thorax of 15 segments, pleurae furrowed at geniculation, sharply pointed distally. Pygidium wide and short, axis long, prominent, pleural fields furrowed, anterior angles sharp, border furrow indistinct, border downturned.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Uncertain
Superfamily:
Dalmanitacea
Family:
Uncertain
Formal Genus Name and Reference:
Metagraulos KOBAYASHI, 1935
Type Species:
Agraulos nitida WALCOTT, 1906
Images
(Click to enlarge in a new window)
Fig. 406, 6. *Metagratlos nitida (Walcott), cran., ×3 (488) (HE)
Synonyms
Geographic Distribution
China
Age Range
Beginning Stage in Treatise Usage:
M.Cam.
Beginning International Stage:
Cambrian Stage 4
Fraction Up In Beginning Stage:
40
Beginning Date:
512.3
Ending Stage in Treatise Usage:
M.Cam.
Ending International Stage:
Guzhangian
Fraction Up In Ending Stage:
50
Ending Date:
498.75
Description
M.Cam., China, Glabella subconical, unfurrowed in adult, palpebral lobes small, close to glabella, anterior in position, frontal area poorly differentiated into preglabellar field and border, anterior sections of facial sutures directed straight forward, posterior sections long, almost straight, defining large, triangular, furrowed posterior area, genal angles rounded. Thorax of 15 segments, pleurae furrowed at geniculation, sharply pointed distally. Pygidium wide and short, axis long, prominent, pleural fields furrowed, anterior angles sharp, border furrow indistinct, border downturned.