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Ptychites
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Ptychitaceae
Family:
Ptychitidae
Formal Genus Name and Reference:
Ptychites MOJSISOVICS, 1875
Type Species:
Am. rugifer Oppel, 1865, SD SPATH, 1951
Images
(Click to enlarge in a new window)
Fig. 211,1. *P. rugifer (Oppel), Anis., Himalaya, 1a, b, × 0.3, 1c, × 0.7 (100*)
Synonyms
Geographic Distribution
Alps, Ger., Balkan, Himalaya, Timor, Japan, N.Sib., Spitz.
Age Range
Beginning Stage in Treatise Usage:
M.Trias.(Anis.)
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
M.Trias.(Ladin.)
Ending International Stage:
Ladinian
Fraction Up In Ending Stage:
100
Ending Date:
237
Description
Subovoid, compressed, discoidal, umbilicus small, umbilical walls steep, sides with distant radial folds
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ceratitida
Superfamily:
Ptychitaceae
Family:
Ptychitidae
Formal Genus Name and Reference:
Ptychites MOJSISOVICS, 1875
Type Species:
Am. rugifer Oppel, 1865, SD SPATH, 1951
Images
(Click to enlarge in a new window)
Fig. 211,1. *P. rugifer (Oppel), Anis., Himalaya, 1a, b, × 0.3, 1c, × 0.7 (100*)
Synonyms
Geographic Distribution
Alps, Ger., Balkan, Himalaya, Timor, Japan, N.Sib., Spitz.
Age Range
Beginning Stage in Treatise Usage:
M.Trias.(Anis.)
Beginning International Stage:
Anisian
Fraction Up In Beginning Stage:
0
Beginning Date:
246.7
Ending Stage in Treatise Usage:
M.Trias.(Ladin.)
Ending International Stage:
Ladinian
Fraction Up In Ending Stage:
100
Ending Date:
237
Description
Subovoid, compressed, discoidal, umbilicus small, umbilical walls steep, sides with distant radial folds