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Latochara
Classification
Phylum:
Charophyta
Class:
Charophyceae
Order:
Charales
Superfamily:
Unknown
Family:
Porocharaceae
Formal Genus Name and Reference:
Latochara Mädler, 1955, p. 271, emend., Feist in Feist & CUBAYNES, 1984, p. 595
Type Species:
Aclistochara latitruncata РЕСК, 1937, p. 89, pl. 14, 1-4, OD
Images
(Click to enlarge in a new window)
Fig. 52,2 a-c. * L. latitruncata (Реск) Mädler, Upper Jurassic, USA, a, lateral view, C.1236-1, b, multipartite basal plate from inside gyrogonite, C.1236-3, × 145, c, apical view, C.1236-2, × 80 (new).
Synonyms
Minhechara
Geographic Distribution
France, Ukraine, USA, China
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:
Paleogene (Paleocene)
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
0
Ending Date:
56
Description
At rim of summit, spiral cells level off, turn inward, then turn abruptly upward into almost vertical position to form small pyramidal projection in center of summit, apical pore very small, Basal plate multipartite, General shape varying from subglobular to ovoid, Size small to medium. [Minhechara, based only on the wider apical pyramidal projection, is not distinguishable from Latochara (FEIST & GRAMBAST-FESSARD, 1991).]
References
Museum or Author Information
Classification
Phylum:
Charophyta
Class:
Charophyceae
Order:
Charales
Superfamily:
Unknown
Family:
Porocharaceae
Formal Genus Name and Reference:
Latochara Mädler, 1955, p. 271, emend., Feist in Feist & CUBAYNES, 1984, p. 595
Type Species:
Aclistochara latitruncata РЕСК, 1937, p. 89, pl. 14, 1-4, OD
Images
(Click to enlarge in a new window)
Fig. 52,2 a-c. * L. latitruncata (Реск) Mädler, Upper Jurassic, USA, a, lateral view, C.1236-1, b, multipartite basal plate from inside gyrogonite, C.1236-3, × 145, c, apical view, C.1236-2, × 80 (new).
Synonyms
Minhechara
Geographic Distribution
France, Ukraine, USA, China
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:
Paleogene (Paleocene)
Ending International Stage:
Thanetian
Fraction Up In Ending Stage:
0
Ending Date:
56
Description
At rim of summit, spiral cells level off, turn inward, then turn abruptly upward into almost vertical position to form small pyramidal projection in center of summit, apical pore very small, Basal plate multipartite, General shape varying from subglobular to ovoid, Size small to medium. [Minhechara, based only on the wider apical pyramidal projection, is not distinguishable from Latochara (FEIST & GRAMBAST-FESSARD, 1991).]