Variation and ontogeny of Calycoceras (Proeucalycoceras) canitaurinum (Haas, 1949) from the Upper Cretaceous (Cenomanian) of the Western Interior of the United States
Mantelliceras canitaurinum Haas, 1949 was originally described from the basal part of the Cody Shale near Greybull, Wyo. The species, which belongs to the genus Calycoceras Hyatt, 1900, subgenus Proeucalycoceras Thomel, 1972, shows considerable variation. This upper Cenomanian index fossil is known...
Main Authors: | Cobban, W, Kennedy, W |
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Format: | Journal article |
Sprog: | English |
Udgivet: |
1990
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Lignende værker
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Observations on the Cenomanian (Upper Cretaceous) ammonite Calycoceras (Calycoceras) obrieni Young, 1957 from Arizona and New Mexico
af: Cobban, W, et al.
Udgivet: (1990) -
Evolution and biogeography of the Cenomanian (Upper Cretaceous) ammonite Metoicoceras Hyatt, 1903, with a revision of Metoicoceras praecox Haas, 1949
af: Cobban, W, et al.
Udgivet: (1991) -
A revision of the ammonite faunas of the type Cenomanian 6. Acanthoceratinae (Calycoceras (Proeucalycoceras), Eucalycoceras, Pseudocalycoceras, Neocardioceras), Euomphaloceratinae, Mammitinae and Vascoceratidae
af: Kennedy, W, et al.
Udgivet: (1994) -
A revision of the ammonite faunas of the type Cenomanian, 5. Acanthoceratinae Calycoceras (Calycoceras), C. (Gentoniceras) and C. (Newboldiceras).
af: Kennedy, W, et al.
Udgivet: (1994) -
Cenomanian (Upper Cretaceous) nautiloids from New Mexico
af: Cobban, W, et al.
Udgivet: (1994)