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Eoptychoparia
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ptychopariacea
Family:
Ptychopariidae
Formal Genus Name and Reference:
Eoptychoparia RASETTI, 1955
Type Species:
E. normalis
Images
(Click to enlarge in a new window)
Fig. 175, 5. *E. normalis, Que., cran., ×3 (448n).
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Cam. (“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:
L.Cam. (“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
Similar to Antagmus, with anterior border furrow regularly curved
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ptychopariacea
Family:
Ptychopariidae
Formal Genus Name and Reference:
Eoptychoparia RASETTI, 1955
Type Species:
E. normalis
Images
(Click to enlarge in a new window)
Fig. 175, 5. *E. normalis, Que., cran., ×3 (448n).
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Cam. (“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:
L.Cam. (“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
Similar to Antagmus, with anterior border furrow regularly curved