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Stenochara
Classification
Phylum:
Charophyta
Class:
Charophyceae
Order:
Charales
Superfamily:
Unknown
Family:
Porocharaceae
Formal Genus Name and Reference:
Stenochara Grambast, 1962b, p. 66, nom. nov. pro Praechara Horn af Rantzien, 1954, p. 57, non Birina, 1948 (type, Praechara chovanensis Birina, 1948, p. 154, pl. 1, 1-2),
Type Species:
Praechara mädleri Horn af RANTZIEN, 1954, p. 62, pl. 5, 6-8, OD
Images
(Click to enlarge in a new window)
Fig. 51,2a. { }^{*} S. maedleri (Horn af Rantzien) Grambast, Triassic, Sweden, holotype, lateral view, x70 (Horn af Rantzien, 1954, pl. V,6)., ——Fig. 51,2b-d. S. zavialensis Grambast-Fessard, Lower Cretaceous, Portugal, b, holotype, lateral view, x70, c, paratype, apical view, d, basal view, x80 (Grambast-Fessard, 1980, pl. 3,10,12,11 )
Synonyms
Geographic Distribution
Bulgaria, Germany, Poland, Portugal, Sweden, Ukraine, China, Kazakhstan
Age Range
Beginning Stage in Treatise Usage:
Triassic
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Lower Cretaceous
Ending International Stage:
Albian
Fraction Up In Ending Stage:
0
Ending Date:
100.5
Description
Apical part of gyrogonite forming low projection, with small, star-shaped or rounded aperture at its top, General shape ovoid, with apex slightly conical and base rounded, Basal plate unknown, Size small to medium. [Differs from Cuneatochara in its apical part, which is less protruding and does not form an acute angle]
References
Museum or Author Information
Classification
Phylum:
Charophyta
Class:
Charophyceae
Order:
Charales
Superfamily:
Unknown
Family:
Porocharaceae
Formal Genus Name and Reference:
Stenochara Grambast, 1962b, p. 66, nom. nov. pro Praechara Horn af Rantzien, 1954, p. 57, non Birina, 1948 (type, Praechara chovanensis Birina, 1948, p. 154, pl. 1, 1-2),
Type Species:
Praechara mädleri Horn af RANTZIEN, 1954, p. 62, pl. 5, 6-8, OD
Images
(Click to enlarge in a new window)
Fig. 51,2a. { }^{*} S. maedleri (Horn af Rantzien) Grambast, Triassic, Sweden, holotype, lateral view, x70 (Horn af Rantzien, 1954, pl. V,6)., ——Fig. 51,2b-d. S. zavialensis Grambast-Fessard, Lower Cretaceous, Portugal, b, holotype, lateral view, x70, c, paratype, apical view, d, basal view, x80 (Grambast-Fessard, 1980, pl. 3,10,12,11 )
Synonyms
Geographic Distribution
Bulgaria, Germany, Poland, Portugal, Sweden, Ukraine, China, Kazakhstan
Age Range
Beginning Stage in Treatise Usage:
Triassic
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Lower Cretaceous
Ending International Stage:
Albian
Fraction Up In Ending Stage:
0
Ending Date:
100.5
Description
Apical part of gyrogonite forming low projection, with small, star-shaped or rounded aperture at its top, General shape ovoid, with apex slightly conical and base rounded, Basal plate unknown, Size small to medium. [Differs from Cuneatochara in its apical part, which is less protruding and does not form an acute angle]