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Rhadinopleura
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Proetacea
Family:
Hapalopleuridae
Formal Genus Name and Reference:
Rhadinopleura Harrington & LEANZA, 1957
Type Species:
R. eurycephala
Images
(Click to enlarge in a new window)
Fig. 332, 2. *R. eurycephala, cran. (holotype), × 10 (59*).
Synonyms
Geographic Distribution
Arg.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Differs from Hapalopleura in having cranidium semielliptical-subtrapezoidal in outline, glabella pyriform-subhexagonal, with 3 pairs of short deep lateral furrows, frontal area slightly convex, fixigenae very wide, eyes located far from glabella, eye ridges normal to axis, anterior sections of facial sutures convergent in front of eyes. Thoracic pleurae slightly sinuous. Pygidium unknown.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Proetacea
Family:
Hapalopleuridae
Formal Genus Name and Reference:
Rhadinopleura Harrington & LEANZA, 1957
Type Species:
R. eurycephala
Images
(Click to enlarge in a new window)
Fig. 332, 2. *R. eurycephala, cran. (holotype), × 10 (59*).
Synonyms
Geographic Distribution
Arg.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Differs from Hapalopleura in having cranidium semielliptical-subtrapezoidal in outline, glabella pyriform-subhexagonal, with 3 pairs of short deep lateral furrows, frontal area slightly convex, fixigenae very wide, eyes located far from glabella, eye ridges normal to axis, anterior sections of facial sutures convergent in front of eyes. Thoracic pleurae slightly sinuous. Pygidium unknown.