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Worthenia
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Pleurotomariina
Superfamily:
Pleurotomariacea
Family:
Lophospiridae
Subfamily:
Ruedemanniinae
Formal Genus Name and Reference:
Worthenia DEKONINCK, 1883
Type Species:
Turbo tabulatus CONRAD, 1835
Images
(Click to enlarge in a new window)
Fig. 121,3. *W. tabulata (Conrad), U.Penn., Pa., X1.3.
Synonyms
Platyworthenia
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
L.Carb.(Miss.)
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
M.Trias.
Ending International Stage:
Ladinian
Fraction Up In Ending Stage:
100
Ending Date:
237
Description
Shape like Loxoplocus (Lophospira) but highly ornamented with spiral and collabral threads, convex selenizone strongly crenulated, anomphalous or minutely phaneromphalous
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Pleurotomariina
Superfamily:
Pleurotomariacea
Family:
Lophospiridae
Subfamily:
Ruedemanniinae
Formal Genus Name and Reference:
Worthenia DEKONINCK, 1883
Type Species:
Turbo tabulatus CONRAD, 1835
Images
(Click to enlarge in a new window)
Fig. 121,3. *W. tabulata (Conrad), U.Penn., Pa., X1.3.
Synonyms
Platyworthenia
Geographic Distribution
cosmop
Age Range
Beginning Stage in Treatise Usage:
L.Carb.(Miss.)
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
M.Trias.
Ending International Stage:
Ladinian
Fraction Up In Ending Stage:
100
Ending Date:
237
Description
Shape like Loxoplocus (Lophospira) but highly ornamented with spiral and collabral threads, convex selenizone strongly crenulated, anomphalous or minutely phaneromphalous