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Songliaochara
Classification
Phylum:
Charophyta
Class:
Charophyceae
Order:
Charales
Superfamily:
Unknown
Family:
Characeae
Formal Genus Name and Reference:
Songliaochara Z. Wang, Lu, & ZHAO, 1985, p. 64
Type Species:
S. heilongjiangensis Z. Wang, Lu, & ZHAO, 1985, p. 65, pl. XXVIII, 2-8, OD, holotype, NIGP 9836, fig. 3a-c
Images
(Click to enlarge in a new window)
Fig. 73,4a-c. *S. heilongjiangensis Z. Wang, Lu, & Zhao, lower Upper Cretaceous, holotype, a, lateral view, b, apical view, c, basal view, x120 (Z. Wang, Lu, & Zhao, 1985, pl. XXVIII, 3 b, 3 a, 3 c )
Synonyms
Geographic Distribution
China
Age Range
Beginning Stage in Treatise Usage:
Upper Cretaceous
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
Upper Cretaceous
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
0
Ending Date:
66.04
Description
Apex nitellopsidoid, with shallow periapical groove, apical nodules rounded, moderately thick. General shape ovoid with apex rounded, projecting above apical level. Spirals generally convex, smooth. Base tapering, sometimes forming well-marked basal column. Basal pore small, basal funnel absent. Basal plate multipartite, as wide as thick, not visible from exterior. Size small. Immature specimens reminiscent of Aclistochara. [The recognition of the basal plate structure shows that Songliaochara can no longer be considered a synonym of Nodosochara.]
References
Museum or Author Information
Classification
Phylum:
Charophyta
Class:
Charophyceae
Order:
Charales
Superfamily:
Unknown
Family:
Characeae
Formal Genus Name and Reference:
Songliaochara Z. Wang, Lu, & ZHAO, 1985, p. 64
Type Species:
S. heilongjiangensis Z. Wang, Lu, & ZHAO, 1985, p. 65, pl. XXVIII, 2-8, OD, holotype, NIGP 9836, fig. 3a-c
Images
(Click to enlarge in a new window)
Fig. 73,4a-c. *S. heilongjiangensis Z. Wang, Lu, & Zhao, lower Upper Cretaceous, holotype, a, lateral view, b, apical view, c, basal view, x120 (Z. Wang, Lu, & Zhao, 1985, pl. XXVIII, 3 b, 3 a, 3 c )
Synonyms
Geographic Distribution
China
Age Range
Beginning Stage in Treatise Usage:
Upper Cretaceous
Beginning International Stage:
Cenomanian
Fraction Up In Beginning Stage:
0
Beginning Date:
100.5
Ending Stage in Treatise Usage:
Upper Cretaceous
Ending International Stage:
Maastrichtian
Fraction Up In Ending Stage:
0
Ending Date:
66.04
Description
Apex nitellopsidoid, with shallow periapical groove, apical nodules rounded, moderately thick. General shape ovoid with apex rounded, projecting above apical level. Spirals generally convex, smooth. Base tapering, sometimes forming well-marked basal column. Basal pore small, basal funnel absent. Basal plate multipartite, as wide as thick, not visible from exterior. Size small. Immature specimens reminiscent of Aclistochara. [The recognition of the basal plate structure shows that Songliaochara can no longer be considered a synonym of Nodosochara.]