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Stenoglaphyrites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Goniatitida
Suborder:
Goniatitina
Superfamily:
Gastrioceratoidea
Family:
Glaphyritidae
Subfamily:
Stenoglaphyritinae
Formal Genus Name and Reference:
Stenoglaphyrites Ruzhentsev & BOGOSLOVSKAIA, 1971, p. 301
Type Species:
*Cravenoceras involutum GORDON, 1965, p. 210, OD
Images
(Click to enlarge in a new window)
Fig. 50, 5 a-e .* S. involutus (Gordon), a-c, holotype, Batesville, Stone County, Pitkin limestone, upper shale member, Chesterian, Arkansas, USA, USNM 119523, X 1, d, suture, USNM 119524, diameter at 6.0 mm , whorl height 3.1 mm , whorl width 4.4 mm, X 7.8, e, paratype, cross section, USNM 119524, X 3.8 (Gordon, 1965)"
Synonyms
Geographic Distribution
Ireland, Portugal, Russia (South Urals), Kazakhstan (South Urals, Tian Shan), Uzbekistan (Kyzylkumy), China (Xinjiang), USA (Arkansas, California, Nevada, Texas)
Age Range
Beginning Stage in Treatise Usage:
Mississippian (Serpukhovian)
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
Pennsylvanian (lower Bashkirian Yeadonian)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
56.3
Ending Date:
318.76
Description
Conch form similar to glaphyritids, first whorls usually evolute, but adult stages with narrow or closed umbilicus. Growth lines linear. Constrictions may be present on internal mold. Suture similar to Glaphyrites, ventral lobe wide, with almost parallel sides, adventitious lobe deep and acute, lanceolate or bell shaped, but never pouched.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Goniatitida
Suborder:
Goniatitina
Superfamily:
Gastrioceratoidea
Family:
Glaphyritidae
Subfamily:
Stenoglaphyritinae
Formal Genus Name and Reference:
Stenoglaphyrites Ruzhentsev & BOGOSLOVSKAIA, 1971, p. 301
Type Species:
*Cravenoceras involutum GORDON, 1965, p. 210, OD
Images
(Click to enlarge in a new window)
Fig. 50, 5 a-e .* S. involutus (Gordon), a-c, holotype, Batesville, Stone County, Pitkin limestone, upper shale member, Chesterian, Arkansas, USA, USNM 119523, X 1, d, suture, USNM 119524, diameter at 6.0 mm , whorl height 3.1 mm , whorl width 4.4 mm, X 7.8, e, paratype, cross section, USNM 119524, X 3.8 (Gordon, 1965)"
Synonyms
Geographic Distribution
Ireland, Portugal, Russia (South Urals), Kazakhstan (South Urals, Tian Shan), Uzbekistan (Kyzylkumy), China (Xinjiang), USA (Arkansas, California, Nevada, Texas)
Age Range
Beginning Stage in Treatise Usage:
Mississippian (Serpukhovian)
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
Pennsylvanian (lower Bashkirian Yeadonian)
Ending International Stage:
Bashkirian
Fraction Up In Ending Stage:
56.3
Ending Date:
318.76
Description
Conch form similar to glaphyritids, first whorls usually evolute, but adult stages with narrow or closed umbilicus. Growth lines linear. Constrictions may be present on internal mold. Suture similar to Glaphyrites, ventral lobe wide, with almost parallel sides, adventitious lobe deep and acute, lanceolate or bell shaped, but never pouched.