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Arcuaria
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Ostracoda - Order and Suborder uncertain
Family:
Ostracoda - Family uncertain
Formal Genus Name and Reference:
Arcuaria NECKAJA, 1958
Type Species:
*A. sineclivula
Images
(Click to enlarge in a new window)
Fig. 333,4. *A. sineclivula, Lithuania; 4a,b, carapace (holotype) R, dors.; 4c, RV lat. (juv. instar), all XI5 (264). [HESSLAND.]
Synonyms
Geographic Distribution
Eu. (NW.Russian Platform)
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Generally high, lateral outline subtriangular, anterior margin sloping more steeply than posterior, ventral concave in central part, valves globose, LV overlapping RV along free margin and RV overlapping LV along central or posterocentral part of dorsal margin, surface smooth but some shells provided with tubercles or fine spines in posterior part.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Ostracoda - Order and Suborder uncertain
Family:
Ostracoda - Family uncertain
Formal Genus Name and Reference:
Arcuaria NECKAJA, 1958
Type Species:
*A. sineclivula
Images
(Click to enlarge in a new window)
Fig. 333,4. *A. sineclivula, Lithuania; 4a,b, carapace (holotype) R, dors.; 4c, RV lat. (juv. instar), all XI5 (264). [HESSLAND.]
Synonyms
Geographic Distribution
Eu. (NW.Russian Platform)
Age Range
Beginning Stage in Treatise Usage:
M.Ord.
Beginning International Stage:
Dapingian
Fraction Up In Beginning Stage:
0
Beginning Date:
471.26
Ending Stage in Treatise Usage:
M.Ord.
Ending International Stage:
Darriwilian
Fraction Up In Ending Stage:
100
Ending Date:
458.18
Description
Generally high, lateral outline subtriangular, anterior margin sloping more steeply than posterior, ventral concave in central part, valves globose, LV overlapping RV along free margin and RV overlapping LV along central or posterocentral part of dorsal margin, surface smooth but some shells provided with tubercles or fine spines in posterior part.