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Mediospirifer
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Cyrtospiriferoidea
Family:
Spinocyrtiidae
Formal Genus Name and Reference:
Mediospirifer BUBLICHENKO, 1956, p. 102
Type Species:
Delthyris medialis Hall, 1843, p. 208, OD, =Delthyris audacula CONRAD, 1842, p. 262
Images
(Click to enlarge in a new window)
Fig. 1130, 3a-e. *M. audaculus (C ONRAD ), New York, USA; ventral, dorsal, anterior, posterior, and lateral views, ×1 (new).
Synonyms
Geographic Distribution
North America, Germany
Age Range
Beginning Stage in Treatise Usage:
Middle Devonian (Givetian)
Beginning International Stage:
Givetian
Fraction Up In Beginning Stage:
0
Beginning Date:
385.3
Ending Stage in Treatise Usage:
Middle Devonian (Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Medium to large, ventribiconvex, transverse, with acute cardinal angles, ventral interarea of moderate height, slightly curved, steeply apsacline, stegidial plates present, fold and sulcus prominent, smooth, flanks with numerous simple plications crossed by closely spaced growth lines
References
Museum or Author Information
Classification
Phylum:
Brachiopoda
Class:
Rhynchonellata
Order:
Spiriferida
Superfamily:
Cyrtospiriferoidea
Family:
Spinocyrtiidae
Formal Genus Name and Reference:
Mediospirifer BUBLICHENKO, 1956, p. 102
Type Species:
Delthyris medialis Hall, 1843, p. 208, OD, =Delthyris audacula CONRAD, 1842, p. 262
Images
(Click to enlarge in a new window)
Fig. 1130, 3a-e. *M. audaculus (C ONRAD ), New York, USA; ventral, dorsal, anterior, posterior, and lateral views, ×1 (new).
Synonyms
Geographic Distribution
North America, Germany
Age Range
Beginning Stage in Treatise Usage:
Middle Devonian (Givetian)
Beginning International Stage:
Givetian
Fraction Up In Beginning Stage:
0
Beginning Date:
385.3
Ending Stage in Treatise Usage:
Middle Devonian (Givetian)
Ending International Stage:
Givetian
Fraction Up In Ending Stage:
100
Ending Date:
378.9
Description
Medium to large, ventribiconvex, transverse, with acute cardinal angles, ventral interarea of moderate height, slightly curved, steeply apsacline, stegidial plates present, fold and sulcus prominent, smooth, flanks with numerous simple plications crossed by closely spaced growth lines