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Glaphyrites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Gastrioceratoidea
Family:
Glaphyritidae
Formal Genus Name and Reference:
Glaphyrites RUZHENTSEV, 1936a, p. 484
Type Species:
Gastrioceras modestum BÖSE, 1919, p. 83, OD
Images
(Click to enlarge in a new window)
Fig. 48, 3a-c. *G. modestus (Böse), a-b, Jacksboro, about 5.6 km east of town, Finis Shale, Graham Formation, northcentral Texas, USA, Virgilian, JPC 3699, × 1.5 (Miller & Downs, 1950a), c, suture, Wolf Camp, 8 km northeast, Glass Mountains, Brewster County, Texas, upper part of Gaptank Formation, YPM 16789, diameter at 12 mm, × 4.7 (Miller & Furnish, 1940a).-Fig. 48, 3d. G. rhymnus Ruzhentsev, cross section, left bank of River Sakmara, at km 165, South Urals, Gzhelian, PIN 320/3330, × 3 (Ruzhentsev, 1950).
Synonyms
Ambiguites
Geographic Distribution
Belgium, Czech Republic, Serbia, Russia (Polar Urals, Novaia Zemlia, South Urals, Verkhoian), Kazakhstan (South Urals), Kyrgyzstan (Kyzylkumi, Fergana, Tian Shan), Tajikistan (Hissar Mountains, Pamirs), Uzbekistan, Iran, China (Gansu, Guizhou, Ningxia, Xinjiang, Xizang), Spain, Algeria, Morocco, Namibia, Mexico, Argentina, Peru, Uruguay, USA (Arkansas, Iowa, Illinois, Kansas, Kentucky, Missouri, New Mexico, Nevada, Utah, Oklahoma, Pennsylvania, Ohio, California, Texas), Canada (Northwest Territories)
Age Range
Beginning Stage in Treatise Usage:
Mississippian (lower Serpukhovian)
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
Cisuralian (Asselian)
Ending International Stage:
Asselian
Fraction Up In Ending Stage:
100
Ending Date:
293.52
Description
Conch form globular to thickly discoidal, more or less involute, ventral side broadly rounded. Moderately evolute on inner whorls, later with moderately wide or narrow umbilicus. Growth lines on young stages usually with ventral salient, at maturity with broad sinus. Umbilical shoulder of immature whorls commonly slightly nodose. Ventral lobe fairly wide, height of median saddle exceeding half height of entire ventral lobe. First lateral saddle broadly rounded, adventitious lobe deep, relatively wide, and bell shaped.
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Gastrioceratoidea
Family:
Glaphyritidae
Formal Genus Name and Reference:
Glaphyrites RUZHENTSEV, 1936a, p. 484
Type Species:
Gastrioceras modestum BÖSE, 1919, p. 83, OD
Images
(Click to enlarge in a new window)
Fig. 48, 3a-c. *G. modestus (Böse), a-b, Jacksboro, about 5.6 km east of town, Finis Shale, Graham Formation, northcentral Texas, USA, Virgilian, JPC 3699, × 1.5 (Miller & Downs, 1950a), c, suture, Wolf Camp, 8 km northeast, Glass Mountains, Brewster County, Texas, upper part of Gaptank Formation, YPM 16789, diameter at 12 mm, × 4.7 (Miller & Furnish, 1940a).-Fig. 48, 3d. G. rhymnus Ruzhentsev, cross section, left bank of River Sakmara, at km 165, South Urals, Gzhelian, PIN 320/3330, × 3 (Ruzhentsev, 1950).
Synonyms
Ambiguites
Geographic Distribution
Belgium, Czech Republic, Serbia, Russia (Polar Urals, Novaia Zemlia, South Urals, Verkhoian), Kazakhstan (South Urals), Kyrgyzstan (Kyzylkumi, Fergana, Tian Shan), Tajikistan (Hissar Mountains, Pamirs), Uzbekistan, Iran, China (Gansu, Guizhou, Ningxia, Xinjiang, Xizang), Spain, Algeria, Morocco, Namibia, Mexico, Argentina, Peru, Uruguay, USA (Arkansas, Iowa, Illinois, Kansas, Kentucky, Missouri, New Mexico, Nevada, Utah, Oklahoma, Pennsylvania, Ohio, California, Texas), Canada (Northwest Territories)
Age Range
Beginning Stage in Treatise Usage:
Mississippian (lower Serpukhovian)
Beginning International Stage:
Serpukhovian
Fraction Up In Beginning Stage:
0
Beginning Date:
330.34
Ending Stage in Treatise Usage:
Cisuralian (Asselian)
Ending International Stage:
Asselian
Fraction Up In Ending Stage:
100
Ending Date:
293.52
Description
Conch form globular to thickly discoidal, more or less involute, ventral side broadly rounded. Moderately evolute on inner whorls, later with moderately wide or narrow umbilicus. Growth lines on young stages usually with ventral salient, at maturity with broad sinus. Umbilical shoulder of immature whorls commonly slightly nodose. Ventral lobe fairly wide, height of median saddle exceeding half height of entire ventral lobe. First lateral saddle broadly rounded, adventitious lobe deep, relatively wide, and bell shaped.