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Gattendorfia
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Prionoceratoidea
Family:
Gattendorfiidae
Formal Genus Name and Reference:
Gattendorfia SCHINDEWOLF, 1920, p. 123
Type Species:
Goniatites subinvolutus MÜNSTER, 1839, p. 23, OD
Images
(Click to enlarge in a new window)
Fig. 3, 1a-e. *G. subinvoluta (MÜNSTER), Hönnetal railway cut, Rhenish Massif, Germany, Gattendorfia Zone, a-b, GPIT 1130/86, c, GPIT 1130/85, X 1, d, suture, suture at 33 mm
Synonyms
Geographic Distribution
Great Britain, France, Germany, Austria, Poland, Russia and Kazakhstan (South Urals), Kazakhstan (Karaganda), China (Guizhou, Xinjiang), USA (Indiana, ?Missouri, Montana, New Mexico, ?Nevada, Utah)
Age Range
Beginning Stage in Treatise Usage:
Mississippian (lower Tournaisian)
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
Mississippian (lower Tournaisian)
Ending International Stage:
Tournaisian
Fraction Up In Ending Stage:
33
Ending Date:
355.15
Description
Conch form lenticular to thickly discoidal, with broadly rounded, rarely flattened venter, Early whorls evolute, later moderately evolute, Umbilicus wide to moderately wide, rarely becoming narrow during ontogeny, Fine or coarse growth lines are convex, with hyponomic sinus, sometimes crenulate, Ornamentation in some forms reticulate, rarely with faint ribs, several constrictions may be present, Suture with parallel-sided ventral lobe, lateral lobe on or close to umbilical wall
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Goniatitida
Superfamily:
Prionoceratoidea
Family:
Gattendorfiidae
Formal Genus Name and Reference:
Gattendorfia SCHINDEWOLF, 1920, p. 123
Type Species:
Goniatites subinvolutus MÜNSTER, 1839, p. 23, OD
Images
(Click to enlarge in a new window)
Fig. 3, 1a-e. *G. subinvoluta (MÜNSTER), Hönnetal railway cut, Rhenish Massif, Germany, Gattendorfia Zone, a-b, GPIT 1130/86, c, GPIT 1130/85, X 1, d, suture, suture at 33 mm
Synonyms
Geographic Distribution
Great Britain, France, Germany, Austria, Poland, Russia and Kazakhstan (South Urals), Kazakhstan (Karaganda), China (Guizhou, Xinjiang), USA (Indiana, ?Missouri, Montana, New Mexico, ?Nevada, Utah)
Age Range
Beginning Stage in Treatise Usage:
Mississippian (lower Tournaisian)
Beginning International Stage:
Tournaisian
Fraction Up In Beginning Stage:
0
Beginning Date:
359.3
Ending Stage in Treatise Usage:
Mississippian (lower Tournaisian)
Ending International Stage:
Tournaisian
Fraction Up In Ending Stage:
33
Ending Date:
355.15
Description
Conch form lenticular to thickly discoidal, with broadly rounded, rarely flattened venter, Early whorls evolute, later moderately evolute, Umbilicus wide to moderately wide, rarely becoming narrow during ontogeny, Fine or coarse growth lines are convex, with hyponomic sinus, sometimes crenulate, Ornamentation in some forms reticulate, rarely with faint ribs, several constrictions may be present, Suture with parallel-sided ventral lobe, lateral lobe on or close to umbilical wall