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Eoredlichia
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Redlichiidae
Formal Genus Name and Reference:
Eoredlichia Chang in Lu & DONG, 1952, p. 186
Type Species:
Redlichia intermedia Lu, 1940, p. 333, OD, lectotype (Lu, 1940, pl. 1, fig. 10, SD W. CHANG, 1962, p. 42), 7061b, NIGP, Nanjing
Images
(Click to enlarge in a new window)
Synonyms
Archaeops, Redlichia, Saukiandops, Pararedlichia, Galloredlichia
Geographic Distribution
China (Yunnan, Sichuan, southern Shaanxi), Qiongzhusian (Eoredlichia-Wutingaspis Zone); Morocco, northern Spain, southern France, Fallotaspis tazemmourtensis Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale)
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)
Ending International Stage:
Cambrian Stage 4
Fraction Up In Ending Stage:
0
Ending Date:
509
Description
Glabella tapering forward, frontal lobe well rounded, S1 and S2 long, deep, and backward-oblique proximally, S3 shallow narrow (tr.), and indistinct; occipital ring longer sagittally and slightly trisegmented longitudinally in well-preserved specimens; preglabellar field same length (sag.) as or slightly shorter or longer than cranidial border; anterior sections of facial sutures divergent; facial line near and parallel to the anterior sections of facial suture; slightly advanced genal spine. Hypostome with 2 pairs of small posterolateral marginal spines. Thorax with 15 segments. Pygidium small, transversely ovate, with anteriorly ankylosed segment and large, ovate or subrounded terminal piece having 1 or 2 pairs of pits.
References
W. Chang, 1962
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Redlichiidae
Formal Genus Name and Reference:
Eoredlichia Chang in Lu & DONG, 1952, p. 186
Type Species:
Redlichia intermedia Lu, 1940, p. 333, OD, lectotype (Lu, 1940, pl. 1, fig. 10, SD W. CHANG, 1962, p. 42), 7061b, NIGP, Nanjing
Images
(Click to enlarge in a new window)Synonyms
Archaeops, Redlichia, Saukiandops, Pararedlichia, Galloredlichia
Geographic Distribution
China (Yunnan, Sichuan, southern Shaanxi), Qiongzhusian (Eoredlichia-Wutingaspis Zone); Morocco, northern Spain, southern France, Fallotaspis tazemmourtensis Zone.
Age Range
Beginning Stage in Treatise Usage:
Lower Cambrian (“Lower Cambrian” in Trilobite volume of Treatise = current Cambrian Epoch 2 of international scale)
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)
Ending International Stage:
Cambrian Stage 4
Fraction Up In Ending Stage:
0
Ending Date:
509
Description
Glabella tapering forward, frontal lobe well rounded, S1 and S2 long, deep, and backward-oblique proximally, S3 shallow narrow (tr.), and indistinct; occipital ring longer sagittally and slightly trisegmented longitudinally in well-preserved specimens; preglabellar field same length (sag.) as or slightly shorter or longer than cranidial border; anterior sections of facial sutures divergent; facial line near and parallel to the anterior sections of facial suture; slightly advanced genal spine. Hypostome with 2 pairs of small posterolateral marginal spines. Thorax with 15 segments. Pygidium small, transversely ovate, with anteriorly ankylosed segment and large, ovate or subrounded terminal piece having 1 or 2 pairs of pits.
References
W. Chang, 1962