Observations on the Cenomanian (Upper Cretaceous) ammonite Calycoceras (Calycoceras) obrieni Young, 1957 from Arizona and New Mexico

Observations on the Cenomanian (Upper Cretaceous) ammonite Calycoceras (Calycoceras) obrieni Young, 1957 from Arizona and New Mexico

Calycoceras (Calycoceras) obrieni Young, 1957 is revised on the basis of new collections from the upper Cenomanian Metoicoceras mosbyense zone of Arizona and New Mexico, and differences between it and C. (C.) naviculare (Mantell, 1822) are described. -Authors

Xehetasun bibliografikoak
Egile Nagusiak:	Cobban, W, Kennedy, W
Formatua:	Journal article
Hizkuntza:	English
Argitaratua:	1990

Antzeko izenburuak

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Variation and ontogeny of Calycoceras (Proeucalycoceras) canitaurinum (Haas, 1949) from the Upper Cretaceous (Cenomanian) of the Western Interior of the United States
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Evolution and biogeography of the Cenomanian (Upper Cretaceous) ammonite Metoicoceras Hyatt, 1903, with a revision of Metoicoceras praecox Haas, 1949
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Cenomanian micromorphic ammonites from the Western Interior of the USA
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Ammonite fauna from the Wenonah Formation (Upper Cretaceous) of New Jersey
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Lower Campanian (Upper Cretaceous) ammonites from the Merchantville Formation of New Jersey, Maryland, and Delaware
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Campanian (Late Cretaceous) ammonites from the upper part of the Anacacho limestone in South-Central Texas
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Middle Campanian (Upper Cretaceous) ammonites from the Pecan Gap chalk of central and northeastern Texas
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Pachydesmoceras Spath, 1922, a Cretaceous ammonite in Colorado
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New records of the ammonite subfamily Texanitinae in Campanian (Upper Cretaceous) rocks in the Western Interior of the United States
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Lower Turonian (Upper Cretaceous) Watinoceras devonense Zone ammonite fauna in Colorado, USA
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Upper Albian and Lower Cenomanian ammonites from the Main Street Limestone, Grayson Marl and Del Rio Clay in northeast Texas
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Cenomanian ammonites from northern aquitaine
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Stratigraphy and ammonite fauna of the Cenomanian of Westphalia
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Platyscaphites, a new ammonite from the Lower Campanian (Upper Cretaceous) of the United States Western Interior
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Upper Cretaceous heteromorph ammonites from the Baculites compressus zone of the Pierre Shale in north-central Colorado
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Campanian (Late Cretaceous) ammonites from the Bergstrom Formation in Central Texas
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Heteromorph ammonites from the Upper Campanian (Upper Cretaceous) Baculites cuneatus and Baculites reesidei zones of the Pierre Shale in Colorado, USA
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The ammonite Metengonoceras Hyatt, 1903, from the Mowry Shale (Cretaceous) of Montana and Wyoming
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Upper Cretaceous ammonites from the Coon Creek Tongue of the Ripley Formation at its type locality in McNairy County, Tennessee
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Ammonites at the Cenomanian-Turonian boundary in the Sergipe Basin, Brazil
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Maastrichtian (Late Cretaceous) ammonites from the Owl Creek Formation in northeastern Mississippi, U.S.A
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Mid-Turonian ammonite faunas from northern Mexico
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Late Campanian (Cretaceous) heteromorph ammonites from the Western Interior of the United States
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Late campanian (cretaceous) heteromorph ammonites from the western interior of the United States
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Cenomanian ammonites from Pech de Foix (Ariège, France)
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