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Paramarginifera
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Paramarginifera FREDERICKS, 1916, p. 61
Type Species:
Marginifera clarkei CHERNYSCHEV, 1902, p. 328, OD
Images
(Click to enlarge in a new window)
Fig. 281, 1a-d. * P. clarkei (Tschernyschew), Permian, Schwagerina Limestone, Ural Mountains, $a, b$, anteroventral view, anterior view, $\\mathrm{X}_{1}, c, d$, posteroventral view, lateral view, XI (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
Ural Mountains, Inner Mongolia, northern China
Age Range
Beginning Stage in Treatise Usage:
Lower Permian (Asselian)
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Lower Permian (Artinskian)
Ending International Stage:
Artinskian
Fraction Up In Ending Stage:
100
Ending Date:
283.3
Description
Medium size with pentagonal outline, profile concavoconvex, long trail with broadly nasute extension, median sulcus originates at umbo, ribbing complete, rugae weak on disks, six spines symmetrically disposed on ears, flanks, venter, cincture bordering ventral corpus, interior unknown.
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Strophomenata
Order:
Productida
Superfamily:
Productoidea
Family:
Productellidae
Formal Genus Name and Reference:
Paramarginifera FREDERICKS, 1916, p. 61
Type Species:
Marginifera clarkei CHERNYSCHEV, 1902, p. 328, OD
Images
(Click to enlarge in a new window)
Fig. 281, 1a-d. * P. clarkei (Tschernyschew), Permian, Schwagerina Limestone, Ural Mountains, $a, b$, anteroventral view, anterior view, $\\mathrm{X}_{1}, c, d$, posteroventral view, lateral view, XI (Muir-Wood & Cooper, 1960).
Synonyms
Geographic Distribution
Ural Mountains, Inner Mongolia, northern China
Age Range
Beginning Stage in Treatise Usage:
Lower Permian (Asselian)
Beginning International Stage:
Asselian
Fraction Up In Beginning Stage:
0
Beginning Date:
298.89
Ending Stage in Treatise Usage:
Lower Permian (Artinskian)
Ending International Stage:
Artinskian
Fraction Up In Ending Stage:
100
Ending Date:
283.3
Description
Medium size with pentagonal outline, profile concavoconvex, long trail with broadly nasute extension, median sulcus originates at umbo, ribbing complete, rugae weak on disks, six spines symmetrically disposed on ears, flanks, venter, cincture bordering ventral corpus, interior unknown.