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Sajanaspis
Classification
Phylum:
Arthropoda
Class:
Trilobita
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Redlichinidae
Formal Genus Name and Reference:
Sajanaspis REPINA, 1960a, p. 196
Type Species:
S. pokrovskayae, OD, holotype (REPINA, 1960, pl. 11, fig. 1), 3548/ 46, CSGM, Novosibirsk
Images
(Click to enlarge in a new window)
.png)
Fig. 300,6. * S. pokrovskayae, eastern and western Sayan mountains, holotype, cranidium, X 5 (Repina, 1960).
Synonyms
Geographic Distribution
Russia (eastern and western Sayan, Altay, Gornaja Shoria, Tuva, Kuznetsk Alatau), Atdabanian (Sajanaspis Zone); western Mongolia, Tologoja subquadrata-Sajanaspis modesta Zone; northern Mongolia, Tologoja subquadrata-Margodiscus rackovskii-Sajanaspis 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:
100
Ending Date:
509
Description
Anterior area of fixigena narrow (tr.), anterior border short (sag. and exs.), eye lobe long (exs.) and arcuate, posterior areas of fixigena very broad (tr.) and long (exs.), librigena with narrow border and short genal spine. Thorax with 15 segments. Pygidium small, with broad (tr.) axial lobe and broad pleural regions.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Class:
Trilobita
Order:
Redlichiida
Superfamily:
Redlichioidea
Family:
Redlichinidae
Formal Genus Name and Reference:
Sajanaspis REPINA, 1960a, p. 196
Type Species:
S. pokrovskayae, OD, holotype (REPINA, 1960, pl. 11, fig. 1), 3548/ 46, CSGM, Novosibirsk
Images
(Click to enlarge in a new window)
Fig. 300,6. * S. pokrovskayae, eastern and western Sayan mountains, holotype, cranidium, X 5 (Repina, 1960).
Synonyms
Geographic Distribution
Russia (eastern and western Sayan, Altay, Gornaja Shoria, Tuva, Kuznetsk Alatau), Atdabanian (Sajanaspis Zone); western Mongolia, Tologoja subquadrata-Sajanaspis modesta Zone; northern Mongolia, Tologoja subquadrata-Margodiscus rackovskii-Sajanaspis 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:
100
Ending Date:
509
Description
Anterior area of fixigena narrow (tr.), anterior border short (sag. and exs.), eye lobe long (exs.) and arcuate, posterior areas of fixigena very broad (tr.) and long (exs.), librigena with narrow border and short genal spine. Thorax with 15 segments. Pygidium small, with broad (tr.) axial lobe and broad pleural regions.