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Parapilekia
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Phacopida
Superfamily:
Proetacea
Family:
Pliomeridae
Formal Genus Name and Reference:
Parapilekia Kobayashi, 1934
Type Species:
Calymene? speciosa Dalman, 1827, SD HOLLIDAY, 1942
Images
(Click to enlarge in a new window)
Fig. 346, 8. *P. speciosa (Dalman), Swed, , 8 a, b, cran., pyg., x0.7 (432).
Synonyms
Geographic Distribution
Swed.-Czech.
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 Pilekia in having glabella longer than wide, oval in outline, with lateral glabellar lobes of subequal length (exag.), longer frontal glabellar lobe, wider fixigenae, posterior sections of facial sutures cutting lateral margins well in front of spinose genal angles. Pygidium with 4 axial rings and terminal axial piece, which does not reach posterior margin, 4 pairs of pleurae ending in evenly distributed long free spines.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Phacopida
Superfamily:
Proetacea
Family:
Pliomeridae
Formal Genus Name and Reference:
Parapilekia Kobayashi, 1934
Type Species:
Calymene? speciosa Dalman, 1827, SD HOLLIDAY, 1942
Images
(Click to enlarge in a new window)
Fig. 346, 8. *P. speciosa (Dalman), Swed, , 8 a, b, cran., pyg., x0.7 (432).
Synonyms
Geographic Distribution
Swed.-Czech.
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 Pilekia in having glabella longer than wide, oval in outline, with lateral glabellar lobes of subequal length (exag.), longer frontal glabellar lobe, wider fixigenae, posterior sections of facial sutures cutting lateral margins well in front of spinose genal angles. Pygidium with 4 axial rings and terminal axial piece, which does not reach posterior margin, 4 pairs of pleurae ending in evenly distributed long free spines.