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Polytylites
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Palaeocopida
Suborder:
Beyrichicopina
Superfamily:
Kirkbyacea
Family:
Amphissitidae
Formal Genus Name and Reference:
Polytylites COOPER, 1941
Type Species:
P. geniculatus
Images
(Click to enlarge in a new window)
Fig. 98,2a-d. *P. geniculatus, Miss., USA(Ill.), 2a-d, carapace (holotype) L. lat., R lat., dors., vent., X40 (Sohn, n). -- Fig. 98, 2e,f. P. digitatus Sohn, M.Perm., USA(Tex.), 2e,f, LV (holotype), lat., dors., X40 (73)
Synonyms
Geographic Distribution
N.Am.-Eu.-Asia
Age Range
Beginning Stage in Treatise Usage:
U.Dev., L.Miss.
Beginning International Stage:
Frasnian
Fraction Up In Beginning Stage:
0
Beginning Date:
378.9
Ending Stage in Treatise Usage:
M.Perm.
Ending International Stage:
Capitanian
Fraction Up In Ending Stage:
100
Ending Date:
259.55
Description
Like Amphissites, without carinae but with terminal nodes well developed
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Palaeocopida
Suborder:
Beyrichicopina
Superfamily:
Kirkbyacea
Family:
Amphissitidae
Formal Genus Name and Reference:
Polytylites COOPER, 1941
Type Species:
P. geniculatus
Images
(Click to enlarge in a new window)
Fig. 98,2a-d. *P. geniculatus, Miss., USA(Ill.), 2a-d, carapace (holotype) L. lat., R lat., dors., vent., X40 (Sohn, n). -- Fig. 98, 2e,f. P. digitatus Sohn, M.Perm., USA(Tex.), 2e,f, LV (holotype), lat., dors., X40 (73)
Synonyms
Geographic Distribution
N.Am.-Eu.-Asia
Age Range
Beginning Stage in Treatise Usage:
U.Dev., L.Miss.
Beginning International Stage:
Frasnian
Fraction Up In Beginning Stage:
0
Beginning Date:
378.9
Ending Stage in Treatise Usage:
M.Perm.
Ending International Stage:
Capitanian
Fraction Up In Ending Stage:
100
Ending Date:
259.55
Description
Like Amphissites, without carinae but with terminal nodes well developed