Welcome to the Treatise on Invertebrate Paleontology! -->
Please enter a genera name to retrieve more information.
Umbonellina
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Archaeogastropoda? - Superfamilies of doubtful subordinal position
Superfamily:
Craspedostomatacea
Family:
Craspedostomatidae
Formal Genus Name and Reference:
Umbonellina KOKEN, 1925
Type Species:
U. infrasilurica
Images
(Click to enlarge in a new window)
Fig. 196,3. *U. infrasilurica, Est., ? X1 (80)
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Ord.
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
U.Ord.
Ending International Stage:
Hirnantian
Fraction Up In Ending Stage:
100
Ending Date:
443.07
Description
Naticiform, umbilicus plugged with callus, otherwise little known
References
Halophiala Koken, 1925 (?pelecypod).
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Gastropoda
Subclass:
Prosobranchia
Order:
Archaeogastropoda
Suborder:
Archaeogastropoda? - Superfamilies of doubtful subordinal position
Superfamily:
Craspedostomatacea
Family:
Craspedostomatidae
Formal Genus Name and Reference:
Umbonellina KOKEN, 1925
Type Species:
U. infrasilurica
Images
(Click to enlarge in a new window)
Fig. 196,3. *U. infrasilurica, Est., ? X1 (80)
Synonyms
Geographic Distribution
Eu.
Age Range
Beginning Stage in Treatise Usage:
U.Ord.
Beginning International Stage:
Sandbian
Fraction Up In Beginning Stage:
0
Beginning Date:
458.18
Ending Stage in Treatise Usage:
U.Ord.
Ending International Stage:
Hirnantian
Fraction Up In Ending Stage:
100
Ending Date:
443.07
Description
Naticiform, umbilicus plugged with callus, otherwise little known
References
Halophiala Koken, 1925 (?pelecypod).