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Cardioceras
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Steogabicerataceae
Family:
Cardioceratidae
Subfamily:
Cardioceratinae
Formal Genus Name and Reference:
Cardioceras Neumayr & UHLIG, 1881
Type Species:
Am. cordatus J.SOWERBY, 1813
Images
(Click to enlarge in a new window)
Fig. 375,6. * C. (C.) cordatum (Sow.), Eng., 6a,b, lectotype (desig. Opinion 235), X1 (6*).
Synonyms
Chalcedoniceras, Anacardioceras, Miticardioceras, Paracardioceras, Galecardioceras
Geographic Distribution
Eu.-Russia-N.Sib.-S.Alaska-Can.-Wyo.-Utah
Age Range
Beginning Stage in Treatise Usage:
U.Jur.(L. Oxf.)
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
0
Beginning Date:
161.53
Ending Stage in Treatise Usage:
U.Jur.(U.Oxf.)
Ending International Stage:
Oxfordian
Fraction Up In Ending Stage:
100
Ending Date:
154.78
Description
Restricted subgenus is moderately compressed, strongly keeled, with ribs well differentiated and secondaries strongly projected on venter, outer whorl large, becoming smooth.
References
Uhlig, Victor, 1881, Ueber Ammonitiden aus dem Hilsbildungen Norddeutschlands: Palaeontographica (Stuttgart), Band 27, p. 129-303, pl. 15-57.
Museum or Author Information
Classification
Phylum:
Mollusca
Class:
Cephalopoda
Subclass:
Ammonoidea
Order:
Ceratitida
Suborder:
Ammonitina
Superfamily:
Steogabicerataceae
Family:
Cardioceratidae
Subfamily:
Cardioceratinae
Formal Genus Name and Reference:
Cardioceras Neumayr & UHLIG, 1881
Type Species:
Am. cordatus J.SOWERBY, 1813
Images
(Click to enlarge in a new window)
Fig. 375,6. * C. (C.) cordatum (Sow.), Eng., 6a,b, lectotype (desig. Opinion 235), X1 (6*).
Synonyms
Chalcedoniceras, Anacardioceras, Miticardioceras, Paracardioceras, Galecardioceras
Geographic Distribution
Eu.-Russia-N.Sib.-S.Alaska-Can.-Wyo.-Utah
Age Range
Beginning Stage in Treatise Usage:
U.Jur.(L. Oxf.)
Beginning International Stage:
Oxfordian
Fraction Up In Beginning Stage:
0
Beginning Date:
161.53
Ending Stage in Treatise Usage:
U.Jur.(U.Oxf.)
Ending International Stage:
Oxfordian
Fraction Up In Ending Stage:
100
Ending Date:
154.78
Description
Restricted subgenus is moderately compressed, strongly keeled, with ribs well differentiated and secondaries strongly projected on venter, outer whorl large, becoming smooth.
References
Uhlig, Victor, 1881, Ueber Ammonitiden aus dem Hilsbildungen Norddeutschlands: Palaeontographica (Stuttgart), Band 27, p. 129-303, pl. 15-57.