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Yinites
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Yinitidae
Formal Genus Name and Reference:
Yinites LU, 1946, p. 188
Type Species:
Y. typicalis, OD, lectotype (Lu, 1946, pl. 1, fig. 1a, W. Zhang, Lu, & OTHERS, 1980, p. 206, pl. 60, fig. 1), AB126, NIGP, Nanjing
Images
(Click to enlarge in a new window)
Fig. 285,1a,b. *Y. typicalis, northern Guizhou (Gaotai in Meitan), a, holotype, cranidium, X_{4}, b, paratype, pygidium, X 10 (W. Zhang, Lu, & others, 1980).
Synonyms
Geographic Distribution
China (northern Guizhou, southeastern Yunnan, northern Sichuan, southern Shaanxi), Yiliangella Zone to Drepanuroides Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale) (lower Canglangpuan)
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) (lower Canglangpuan)
Ending International Stage:
Cambrian Stage 3
Fraction Up In Ending Stage:
0
Ending Date:
514.5
Description
Glabella long and rounded in front, preoccipital and occipital furrows gently curved backward, occipital ring of uniform width, proximal end of anterior section of facial suture near axial furrow, posterior area of fixigena triangular, librigena with long and slightly advanced genal spine. Thorax with 13 segments. Pygidium with 3 or 4 axial rings, large terminal axial piece, 3 pleurae, 2 pairs of short, lateral pygidial spines, and a pair of long, backwardly directed posterior spines. Hypostome subtrapezoidal, median body large and ovate, posterior lobe narrow (sag. ), posterior border very narrow and distinct, anterior wings triangular. Lower Cambrian (lower Canglangpuan): China (northern Guizhou, southeastern Yunnan, northern Sichuan, southern Shaanxi), Yiliangella Zone to Drepanuroides Zone.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Yinitidae
Formal Genus Name and Reference:
Yinites LU, 1946, p. 188
Type Species:
Y. typicalis, OD, lectotype (Lu, 1946, pl. 1, fig. 1a, W. Zhang, Lu, & OTHERS, 1980, p. 206, pl. 60, fig. 1), AB126, NIGP, Nanjing
Images
(Click to enlarge in a new window)
Fig. 285,1a,b. *Y. typicalis, northern Guizhou (Gaotai in Meitan), a, holotype, cranidium, X_{4}, b, paratype, pygidium, X 10 (W. Zhang, Lu, & others, 1980).
Synonyms
Geographic Distribution
China (northern Guizhou, southeastern Yunnan, northern Sichuan, southern Shaanxi), Yiliangella Zone to Drepanuroides Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale) (lower Canglangpuan)
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) (lower Canglangpuan)
Ending International Stage:
Cambrian Stage 3
Fraction Up In Ending Stage:
0
Ending Date:
514.5
Description
Glabella long and rounded in front, preoccipital and occipital furrows gently curved backward, occipital ring of uniform width, proximal end of anterior section of facial suture near axial furrow, posterior area of fixigena triangular, librigena with long and slightly advanced genal spine. Thorax with 13 segments. Pygidium with 3 or 4 axial rings, large terminal axial piece, 3 pleurae, 2 pairs of short, lateral pygidial spines, and a pair of long, backwardly directed posterior spines. Hypostome subtrapezoidal, median body large and ovate, posterior lobe narrow (sag. ), posterior border very narrow and distinct, anterior wings triangular. Lower Cambrian (lower Canglangpuan): China (northern Guizhou, southeastern Yunnan, northern Sichuan, southern Shaanxi), Yiliangella Zone to Drepanuroides Zone.