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Palaeonucula
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeotaxodonta
Order:
Nuculoida
Superfamily:
Nuculacea
Family:
Nuculidea
Formal Genus Name and Reference:
Palaeonucula QUENSTEDT, 1930, p. 110
Type Species:
Nucula hammeri DEFRANCE, 1825, OD
Images
(Click to enlarge in a new window)
Fig. A3,1. *P. hammeri (Defrance), Jur., France, LV ext., X1 (832)
Synonyms
Geographic Distribution
Eu.-Asia-N.Am.
Age Range
Beginning Stage in Treatise Usage:
Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Jur.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
100
Ending Date:
143.1
Description
Inflated, smooth, hinge as in Nucula but posterior series of teeth shorter, inner ventral margin smooth
References
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Bivalvia
Subclass:
Palaeotaxodonta
Order:
Nuculoida
Superfamily:
Nuculacea
Family:
Nuculidea
Formal Genus Name and Reference:
Palaeonucula QUENSTEDT, 1930, p. 110
Type Species:
Nucula hammeri DEFRANCE, 1825, OD
Images
(Click to enlarge in a new window)
Fig. A3,1. *P. hammeri (Defrance), Jur., France, LV ext., X1 (832)
Synonyms
Geographic Distribution
Eu.-Asia-N.Am.
Age Range
Beginning Stage in Treatise Usage:
Trias.
Beginning International Stage:
Induan
Fraction Up In Beginning Stage:
0
Beginning Date:
251.9
Ending Stage in Treatise Usage:
Jur.
Ending International Stage:
Tithonian
Fraction Up In Ending Stage:
100
Ending Date:
143.1
Description
Inflated, smooth, hinge as in Nucula but posterior series of teeth shorter, inner ventral margin smooth