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Tiltoniceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Hildoceratidae
Formal Genus Name and Reference:
Tiltoniceras BUCKMAN, 1913
Type Species:
T. costatum
Images
(Click to enlarge in a new window)
Fig. 290,5. *T. costatum, 5a,b, x1 (65*)
Synonyms
Geographic Distribution
Eng
Age Range
Beginning Stage in Treatise Usage:
L.Toarc.
Beginning International Stage:
Toarcian
Fraction Up In Beginning Stage:
0
Beginning Date:
184.2
Ending Stage in Treatise Usage:
L.Toarc.
Ending International Stage:
Toarcian
Fraction Up In Ending Stage:
50
Ending Date:
179.45
Description
Umbilical edge sharp, ribbing gently falcate, blunt, strongly projected on venter
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Order:
Ammonitida
Superfamily:
Eoderocerataceae
Family:
Hildoceratidae
Formal Genus Name and Reference:
Tiltoniceras BUCKMAN, 1913
Type Species:
T. costatum
Images
(Click to enlarge in a new window)
Fig. 290,5. *T. costatum, 5a,b, x1 (65*)
Synonyms
Geographic Distribution
Eng
Age Range
Beginning Stage in Treatise Usage:
L.Toarc.
Beginning International Stage:
Toarcian
Fraction Up In Beginning Stage:
0
Beginning Date:
184.2
Ending Stage in Treatise Usage:
L.Toarc.
Ending International Stage:
Toarcian
Fraction Up In Ending Stage:
50
Ending Date:
179.45
Description
Umbilical edge sharp, ribbing gently falcate, blunt, strongly projected on venter