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Polyplectus
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Hildoceratidae
Formal Genus Name and Reference:
Polyplectus BUCKMAN, 1890
Type Species:
Am. discoides ZIETEN, 1830
Images
(Click to enlarge in a new window)
Fig. 289,8. *P. discoides (Zieten), Ger., 8a-c, x1 (595*)
Synonyms
Geographic Distribution
Eu.-N. Afr.-Baluch.
Age Range
Beginning Stage in Treatise Usage:
U.Toarc.
Beginning International Stage:
Toarcian
Fraction Up In Beginning Stage:
50
Beginning Date:
179.45
Ending Stage in Treatise Usage:
U.Toarc.
Ending International Stage:
Toarcian
Fraction Up In Ending Stage:
100
Ending Date:
174.7
Description
Oxycone with knife-edge venter, Sutures modified but well frilled
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Hildoceratidae
Formal Genus Name and Reference:
Polyplectus BUCKMAN, 1890
Type Species:
Am. discoides ZIETEN, 1830
Images
(Click to enlarge in a new window)
Fig. 289,8. *P. discoides (Zieten), Ger., 8a-c, x1 (595*)
Synonyms
Geographic Distribution
Eu.-N. Afr.-Baluch.
Age Range
Beginning Stage in Treatise Usage:
U.Toarc.
Beginning International Stage:
Toarcian
Fraction Up In Beginning Stage:
50
Beginning Date:
179.45
Ending Stage in Treatise Usage:
U.Toarc.
Ending International Stage:
Toarcian
Fraction Up In Ending Stage:
100
Ending Date:
174.7
Description
Oxycone with knife-edge venter, Sutures modified but well frilled