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Liospira
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Pleurotomariina
Superfamily:
Pleurotomariacea
Family:
Raphistomatidae
Subfamily:
Liospirinae
Formal Genus Name and Reference:
Liospira Ulrich & SCOFIELD, 1897
Type Species:
Pleurotomaria micula Hall, 1862, SD MCLEARN, 1942
Images
(Click to enlarge in a new window)
Fig. 116,2. *L. micula (HALL), U.Ord., Ky.; X4.
Synonyms
Eocryptaenia
Geographic Distribution
N.Am.-Eu.-NE. Asia
Age Range
Beginning Stage in Treatise Usage:
L.Ord., M.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Sil.
Ending International Stage:
Pridoli
Fraction Up In Ending Stage:
100
Ending Date:
419
Description
Surface glossy, without ornament, selenizone convex, forming periphery but largely on upper side; cryptomphalous.
References
Ulrich, E. O. \& Scofield, W. H., 1897, The Lower Silurian Gastropoda of Minnesota: Minnesota Geol. Survey, v. 3, pt. 2, p. 813-1081, pl. 61-82 (Minneapolis).
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Pleurotomariina
Superfamily:
Pleurotomariacea
Family:
Raphistomatidae
Subfamily:
Liospirinae
Formal Genus Name and Reference:
Liospira Ulrich & SCOFIELD, 1897
Type Species:
Pleurotomaria micula Hall, 1862, SD MCLEARN, 1942
Images
(Click to enlarge in a new window)
Fig. 116,2. *L. micula (HALL), U.Ord., Ky.; X4.
Synonyms
Eocryptaenia
Geographic Distribution
N.Am.-Eu.-NE. Asia
Age Range
Beginning Stage in Treatise Usage:
L.Ord., M.Ord.
Beginning International Stage:
Tremadocian
Fraction Up In Beginning Stage:
0
Beginning Date:
486.85
Ending Stage in Treatise Usage:
Sil.
Ending International Stage:
Pridoli
Fraction Up In Ending Stage:
100
Ending Date:
419
Description
Surface glossy, without ornament, selenizone convex, forming periphery but largely on upper side; cryptomphalous.
References
Ulrich, E. O. \& Scofield, W. H., 1897, The Lower Silurian Gastropoda of Minnesota: Minnesota Geol. Survey, v. 3, pt. 2, p. 813-1081, pl. 61-82 (Minneapolis).