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Euloma
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ptychopariacea
Family:
Ptychopariidae
Formal Genus Name and Reference:
Euloma Angelin, 1854
Type Species:
E. laeve Angelin, SD VOGDES, 1925
Images
(Click to enlarge in a new window)
Fig. 173, 1. *E. laeve, Swed., 1a, cran., x2.5, 1 b, pyg., x2.5 (299).
Synonyms
Calymenopsis
Geographic Distribution
Eu.
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 about 0.7 of cranidial length, defined by deep axial furrows, with at least 2 pairs of deep lateral glabellar furrows, occipital furrow deep, occipital ring simple, eye ridges broad, poorly defined, palpebral lobes large (in type species) to medium (E. monile), semicircular, palpebral furrows deep, anterior sections of facial sutures slightly divergent, anterior border furrow with a row of pits, posterior area slender, extending laterally well beyond the palpebral lobes. Thorax of 13 segments (E. monile).
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ptychopariacea
Family:
Ptychopariidae
Formal Genus Name and Reference:
Euloma Angelin, 1854
Type Species:
E. laeve Angelin, SD VOGDES, 1925
Images
(Click to enlarge in a new window)
Fig. 173, 1. *E. laeve, Swed., 1a, cran., x2.5, 1 b, pyg., x2.5 (299).
Synonyms
Calymenopsis
Geographic Distribution
Eu.
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 about 0.7 of cranidial length, defined by deep axial furrows, with at least 2 pairs of deep lateral glabellar furrows, occipital furrow deep, occipital ring simple, eye ridges broad, poorly defined, palpebral lobes large (in type species) to medium (E. monile), semicircular, palpebral furrows deep, anterior sections of facial sutures slightly divergent, anterior border furrow with a row of pits, posterior area slender, extending laterally well beyond the palpebral lobes. Thorax of 13 segments (E. monile).