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Proceratopyge
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ceratopygacea
Family:
Ceratopygidae
Formal Genus Name and Reference:
Proceratopyge WALLERIUS, 1895
Type Species:
P. conifrons
Images
(Click to enlarge in a new window)
Fig. 271, 3. *P. conitrons, M.Cam., Swed., 3a, b, ceph., pyg., X3 (336), Fig. 271, 2. P. magnicauda Westergård, M.Cam., Swed., incomplete thorax with pyg., x3 (336)
Synonyms
Geographic Distribution
Swed., Asia, Austral., ?L.Ord.(Tremadoc.), Arg.
Age Range
Beginning Stage in Treatise Usage:
Up.M.Cam., ?L.Ord.(Tremadoc)
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Up.M.Cam., ?L.Ord.(Tremadoc)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
0
Ending Date:
477.08
Description
Differs from Ceratopyge in having cephalon about 0.3 of total length of exoskeleton, wider, tapering to almost parallel-sided glabella, palpebral lobes situated opposite glabellar center, slightly diverging or almost parallel courses of anterior sections of facial sutures between eyes and anterior border, thorax of 9 segments with obliquely backward-directed pleural spines, and larger pygidium with 3 to 11 axial rings, well-segmented pleural fields, concave border, and 1st segment terminating in pleural spines
References
Museum or Author Information
Classification
Phylum:
Unknown
Class:
Trilobata
Order:
Ptychopariida
Superfamily:
Ceratopygacea
Family:
Ceratopygidae
Formal Genus Name and Reference:
Proceratopyge WALLERIUS, 1895
Type Species:
P. conifrons
Images
(Click to enlarge in a new window)
Fig. 271, 3. *P. conitrons, M.Cam., Swed., 3a, b, ceph., pyg., X3 (336), Fig. 271, 2. P. magnicauda Westergård, M.Cam., Swed., incomplete thorax with pyg., x3 (336)
Synonyms
Geographic Distribution
Swed., Asia, Austral., ?L.Ord.(Tremadoc.), Arg.
Age Range
Beginning Stage in Treatise Usage:
Up.M.Cam., ?L.Ord.(Tremadoc)
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Up.M.Cam., ?L.Ord.(Tremadoc)
Ending International Stage:
Tremadocian
Fraction Up In Ending Stage:
0
Ending Date:
477.08
Description
Differs from Ceratopyge in having cephalon about 0.3 of total length of exoskeleton, wider, tapering to almost parallel-sided glabella, palpebral lobes situated opposite glabellar center, slightly diverging or almost parallel courses of anterior sections of facial sutures between eyes and anterior border, thorax of 9 segments with obliquely backward-directed pleural spines, and larger pygidium with 3 to 11 axial rings, well-segmented pleural fields, concave border, and 1st segment terminating in pleural spines