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Leperditia
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Leperditicopida
Family:
Leperditiidae
Formal Genus Name and Reference:
Leperditia ROUAULT, 1851
Type Species:
L. britannica
Images
(Click to enlarge in a new window)
Fig. 45,5. *L. britannica, Dev., Fr., 5a,b, carapace R, L, X5 (Oehlert, 1877). -- Fig. 42,3. L. scalaris Jones, Sil., USA(Pa.), LV int. (muscle scar), X10 (Swartz, 1949). -- Fig. 43. L. sp., U.Sil., Swed.(Gotl.), LV lat., showing eye protuberance in anterodorsal region and impression of large muscle area slightly below and behind it, X3.8 (Triebel, 1941)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
L.Sil.
Beginning International Stage:
Rhuddanian
Fraction Up In Beginning Stage:
0
Beginning Date:
443.07
Ending Stage in Treatise Usage:
U.Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Nonsulcate, unornamented, smooth or punctate, posterodorsal swelling in LV but absent in RV, chevron-like muscle scar subjacent to eye tubercle and anterodorsal to larger adductor scar; hinge finely denticulate, inner margin shoulder of overlapped edge of LV serving as stop for RV.
References
Museum or Author Information
Classification
Phylum:
Arthropoda
Subphylum:
Crustacea (superclass)
Class:
Ostracoda
Order:
Leperditicopida
Family:
Leperditiidae
Formal Genus Name and Reference:
Leperditia ROUAULT, 1851
Type Species:
L. britannica
Images
(Click to enlarge in a new window)
Fig. 45,5. *L. britannica, Dev., Fr., 5a,b, carapace R, L, X5 (Oehlert, 1877). -- Fig. 42,3. L. scalaris Jones, Sil., USA(Pa.), LV int. (muscle scar), X10 (Swartz, 1949). -- Fig. 43. L. sp., U.Sil., Swed.(Gotl.), LV lat., showing eye protuberance in anterodorsal region and impression of large muscle area slightly below and behind it, X3.8 (Triebel, 1941)
Synonyms
Geographic Distribution
cosmop.
Age Range
Beginning Stage in Treatise Usage:
L.Sil.
Beginning International Stage:
Rhuddanian
Fraction Up In Beginning Stage:
0
Beginning Date:
443.07
Ending Stage in Treatise Usage:
U.Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Nonsulcate, unornamented, smooth or punctate, posterodorsal swelling in LV but absent in RV, chevron-like muscle scar subjacent to eye tubercle and anterodorsal to larger adductor scar; hinge finely denticulate, inner margin shoulder of overlapped edge of LV serving as stop for RV.