Welcome to the Treatise on Invertebrate Paleontology!
Please enter a genera name to retrieve more information.
Tornoceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Clymeniida
Superfamily:
Cheilocerataceae
Family:
Tornoceratidae
Formal Genus Name and Reference:
Tornoceras HXATT, 1884
Type Species:
Gon. uniangularis CONRAD, 1842
Images
(Click to enlarge in a new window)
Fig. 46; 47B. "T. (T.) tmiangulare, V.Dev., N.Y.; 46, Xl; 47B, X2.5 (107).--FIG. 47A. T. (T.) dis- coideum (HALL), M.Dev., N.Y.; XI.3 (12).-- FIG. 48. T. (T.) cl'ebl'iseptum RAYMOND, V.Dev., Mont.; A-D, enlarged (110)
Synonyms
Parodiceras, Epitornoceras
Geographic Distribution
widespread N. Am.-Eurasia-N.Afr.-W.Austra
Age Range
Beginning Stage in Treatise Usage:
M.Dev.
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
U.Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Sutures form 6 lobes, lateral ones rounded. Sculpture, umbilicus, and shape of sutures variable
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Clymeniida
Superfamily:
Cheilocerataceae
Family:
Tornoceratidae
Formal Genus Name and Reference:
Tornoceras HXATT, 1884
Type Species:
Gon. uniangularis CONRAD, 1842
Images
(Click to enlarge in a new window)
Fig. 46; 47B. "T. (T.) tmiangulare, V.Dev., N.Y.; 46, Xl; 47B, X2.5 (107).--FIG. 47A. T. (T.) dis- coideum (HALL), M.Dev., N.Y.; XI.3 (12).-- FIG. 48. T. (T.) cl'ebl'iseptum RAYMOND, V.Dev., Mont.; A-D, enlarged (110)
Synonyms
Parodiceras, Epitornoceras
Geographic Distribution
widespread N. Am.-Eurasia-N.Afr.-W.Austra
Age Range
Beginning Stage in Treatise Usage:
M.Dev.
Beginning International Stage:
Eifelian
Fraction Up In Beginning Stage:
0
Beginning Date:
394.3
Ending Stage in Treatise Usage:
U.Dev.
Ending International Stage:
Famennian
Fraction Up In Ending Stage:
100
Ending Date:
359.3
Description
Sutures form 6 lobes, lateral ones rounded. Sculpture, umbilicus, and shape of sutures variable