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Proerbia
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Corynexochida
Superfamily:
Unknown
Family:
Dinesidae
Formal Genus Name and Reference:
Proerbia LERMONTOVA, 1940
Type Species:
P. prisca
Images
(Click to enlarge in a new window)
Fig. 169, 2. *P. prisca, Lower course of River Lena, cran., x3 (411).
Synonyms
Geographic Distribution
Sib.
Age Range
Beginning Stage in Treatise Usage:
Up. L.Cam.(“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale)
Beginning International Stage:
Wuliuan
Fraction Up In Beginning Stage:
0
Beginning Date:
509
Ending Stage in Treatise Usage:
Up. L.Cam.(“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale)
Ending International Stage:
Wuliuan
Fraction Up In Ending Stage:
100
Ending Date:
504.5
Description
Glabella strongly convex, with 4 pairs of lateral furrows, anterior 2 pairs short, faint, diagonal forward, posterior 2 pairs strong, curved backward, last pair may touch occipital furrow, with occipital spine, preglabellar field of medium width, divided longitudinally by 2 additional furrows into 3 oval convex areas, eyes slightly above medium size, located a little behind center of glabella, fixigenae with palpebral areas slightly less than glabellar width, posterior areas same length (tr.) as occipital ring. Librigenae, thorax, and pygidium unknown. Surface coarsely granular.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Corynexochida
Superfamily:
Unknown
Family:
Dinesidae
Formal Genus Name and Reference:
Proerbia LERMONTOVA, 1940
Type Species:
P. prisca
Images
(Click to enlarge in a new window)
Fig. 169, 2. *P. prisca, Lower course of River Lena, cran., x3 (411).
Synonyms
Geographic Distribution
Sib.
Age Range
Beginning Stage in Treatise Usage:
Up. L.Cam.(“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale)
Beginning International Stage:
Wuliuan
Fraction Up In Beginning Stage:
0
Beginning Date:
509
Ending Stage in Treatise Usage:
Up. L.Cam.(“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale)
Ending International Stage:
Wuliuan
Fraction Up In Ending Stage:
100
Ending Date:
504.5
Description
Glabella strongly convex, with 4 pairs of lateral furrows, anterior 2 pairs short, faint, diagonal forward, posterior 2 pairs strong, curved backward, last pair may touch occipital furrow, with occipital spine, preglabellar field of medium width, divided longitudinally by 2 additional furrows into 3 oval convex areas, eyes slightly above medium size, located a little behind center of glabella, fixigenae with palpebral areas slightly less than glabellar width, posterior areas same length (tr.) as occipital ring. Librigenae, thorax, and pygidium unknown. Surface coarsely granular.