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Kirkbya
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Palaeocopida
Suborder:
Beyrichicopina
Superfamily:
Kirkbyacea
Family:
Kirkbyidae
Formal Genus Name and Reference:
Kirkbya JONES, 1859
Type Species:
*Dithyrocaris permiana JONES, 1850
Images
(Click to enlarge in a new window)
Fig. 95,1. K. sp., Perm., USA(Tex.), 1a,b, RV lat., dors., X40, 1c, RV int., X30 (73). -- Fig. 96,4. K. canyonensis Harlton, Penn., USA(Tex.), ant. sec. through LV (ir, inner ridge, or, outer ridge), X90 (73)
Synonyms
Geographic Distribution
N.Am.-Eu.-Asia
Age Range
Beginning Stage in Treatise Usage:
L.Miss.
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
M.Perm.
Ending International Stage:
Capitanian
Fraction Up In Ending Stage:
100
Ending Date:
259.55
Description
Elongate, greatest length at or near dorsal margin, posterior cardinal angle acute, lateral surface evenly convex or with posterior shoulder, 2 marginal rims.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Palaeocopida
Suborder:
Beyrichicopina
Superfamily:
Kirkbyacea
Family:
Kirkbyidae
Formal Genus Name and Reference:
Kirkbya JONES, 1859
Type Species:
*Dithyrocaris permiana JONES, 1850
Images
(Click to enlarge in a new window)
Fig. 95,1. K. sp., Perm., USA(Tex.), 1a,b, RV lat., dors., X40, 1c, RV int., X30 (73). -- Fig. 96,4. K. canyonensis Harlton, Penn., USA(Tex.), ant. sec. through LV (ir, inner ridge, or, outer ridge), X90 (73)
Synonyms
Geographic Distribution
N.Am.-Eu.-Asia
Age Range
Beginning Stage in Treatise Usage:
L.Miss.
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
M.Perm.
Ending International Stage:
Capitanian
Fraction Up In Ending Stage:
100
Ending Date:
259.55
Description
Elongate, greatest length at or near dorsal margin, posterior cardinal angle acute, lateral surface evenly convex or with posterior shoulder, 2 marginal rims.