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Jingyangia
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Redlichiidae
Formal Genus Name and Reference:
Jingyangia Chang & Zhang in Lu, Chang, & OTHERS, 1974, p. 88
Type Species:
J. zhenbaensis, OD, holotype (Lu, Chang, & OTHERS, 1974, pl. 33, fig. 8), 21476, NIGP, Nanjing
Images
(Click to enlarge in a new window)
Fig. 277,2. *J. zhenbaensis, southern Shaanxi (Zhenba); holotype, cranidium, × 2 (W. Zhang, Lu, & others, 1980).
Synonyms
Geographic Distribution
China (southern Shaanxi), Eoredlichia-Wutingaspis Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale) (Qiongzhusian)
Beginning International Stage:
Cambrian Stage 3
Fraction Up In Beginning Stage:
0
Beginning Date:
521
Ending Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale) (Qiongzhusian)
Ending International Stage:
Cambrian Stage 3
Fraction Up In Ending Stage:
0
Ending Date:
517.75
Description
Cranidium subquadrate, glabella expanded forward with 3 pairs of glabellar furrows, occipital furrow discontinuous, occipital ring broad (sag.) medially, cranidial border furrow narrow and deep, border narrow and convex, preglabellar field as long (sag.) as border, palpebral area of fixigena broad (tr.), posterior area of fixigena short (exs.) and wide (tr.), anterior sections of facial sutures slightly divergent, librigena with short genal spine, pygidium relatively wide (tr.), subtriangular, with large terminal piece divided into 3 rounded lobes
References
Lu, Yenhao, Wentang Chang, Yiyuan Qian, Zhaoling Zhu, Huanling Lin, Zhiyi Zhou, Sengui Zhang, \& Jinliang Yuan. 1974. Cambrian trilobites. In Nanjing Institute of Geology \& Paleontology, A Handbook of the Stratigraphy and Palaeontology of Southwest China. Science Press. Beijing. p. 82-107, pl. 31-42.
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Redlichiidae
Formal Genus Name and Reference:
Jingyangia Chang & Zhang in Lu, Chang, & OTHERS, 1974, p. 88
Type Species:
J. zhenbaensis, OD, holotype (Lu, Chang, & OTHERS, 1974, pl. 33, fig. 8), 21476, NIGP, Nanjing
Images
(Click to enlarge in a new window)
Fig. 277,2. *J. zhenbaensis, southern Shaanxi (Zhenba); holotype, cranidium, × 2 (W. Zhang, Lu, & others, 1980).
Synonyms
Geographic Distribution
China (southern Shaanxi), Eoredlichia-Wutingaspis Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale) (Qiongzhusian)
Beginning International Stage:
Cambrian Stage 3
Fraction Up In Beginning Stage:
0
Beginning Date:
521
Ending Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale) (Qiongzhusian)
Ending International Stage:
Cambrian Stage 3
Fraction Up In Ending Stage:
0
Ending Date:
517.75
Description
Cranidium subquadrate, glabella expanded forward with 3 pairs of glabellar furrows, occipital furrow discontinuous, occipital ring broad (sag.) medially, cranidial border furrow narrow and deep, border narrow and convex, preglabellar field as long (sag.) as border, palpebral area of fixigena broad (tr.), posterior area of fixigena short (exs.) and wide (tr.), anterior sections of facial sutures slightly divergent, librigena with short genal spine, pygidium relatively wide (tr.), subtriangular, with large terminal piece divided into 3 rounded lobes
References
Lu, Yenhao, Wentang Chang, Yiyuan Qian, Zhaoling Zhu, Huanling Lin, Zhiyi Zhou, Sengui Zhang, \& Jinliang Yuan. 1974. Cambrian trilobites. In Nanjing Institute of Geology \& Paleontology, A Handbook of the Stratigraphy and Palaeontology of Southwest China. Science Press. Beijing. p. 82-107, pl. 31-42.