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Pareuloma
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ptychopariacea
Family:
Ptychopariidae
Formal Genus Name and Reference:
Pareuloma RASETTI, 1954
Type Species:
P. brachymetopa
Images
(Click to enlarge in a new window)
Fig. 173, 2. *P. brachymetopa, Que., cran., x5 (448n).
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Glabella narrow, almost parallel-sided, only half of cranidial length, axial furrows very deep laterally, shallow anteriorly, preglabellar field with median boss, eyes small, opposite anterior end of glabella, posterior areas of fixigenae large, broadly triangular, decply furrowed.
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ptychopariacea
Family:
Ptychopariidae
Formal Genus Name and Reference:
Pareuloma RASETTI, 1954
Type Species:
P. brachymetopa
Images
(Click to enlarge in a new window)
Fig. 173, 2. *P. brachymetopa, Que., cran., x5 (448n).
Synonyms
Geographic Distribution
N.Am.
Age Range
Beginning Stage in Treatise Usage:
L.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
L.Ord.
Ending International Stage:
Floian
Fraction Up In Ending Stage:
100
Ending Date:
471.26
Description
Glabella narrow, almost parallel-sided, only half of cranidial length, axial furrows very deep laterally, shallow anteriorly, preglabellar field with median boss, eyes small, opposite anterior end of glabella, posterior areas of fixigenae large, broadly triangular, decply furrowed.