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Prozacanthoides
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Corynexochida
Superfamily:
Unknown
Family:
Zacanthoididae
Formal Genus Name and Reference:
Prozacanthoides RESSER, 1937
Type Species:
Olenaides stissingensis DWIGHT, 1889
Images
(Click to enlarge in a new window)
Fig. 168,2. P. virginicus RESSER, Va.; 2a,b, cran., pyg., X2 (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
Cephalon as in Zacanthaides. pygidial pleurae not directed sharply backward.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Corynexochida
Superfamily:
Unknown
Family:
Zacanthoididae
Formal Genus Name and Reference:
Prozacanthoides RESSER, 1937
Type Species:
Olenaides stissingensis DWIGHT, 1889
Images
(Click to enlarge in a new window)
Fig. 168,2. P. virginicus RESSER, Va.; 2a,b, cran., pyg., X2 (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
Cephalon as in Zacanthaides. pygidial pleurae not directed sharply backward.