Late Campanian (Cretaceous) heteromorph ammonites from the Western Interior of the United States

Title Variants

Alternative: Heteromorph ammonites

Related Titles

Series: Bulletin of the American Museum of Natural History, no. 251

By

Cobban, William Aubrey, 1916-
Scott, G. R.

Kennedy, W. J. (William James)
Landman, Neil H.

Type

Book

Material

Published material

Publication info

[New York] American Museum of Natural History c2000

Notes

"Issued April 10, 2000."

"Heteromorh ammonites of the families Nostoceratidae Hyatt, 1894, and Diplomoceratidae Spath, 1926, are common to abundant in sediments deposited in the western and central parts of the U.S. Western Interior Seaway during the early late Campanian. The indices of successive zones of Didymoceras nebrascense (Meek and Hayden, 1856a) (oldest), Didymoceras stevensoni (Whitfield, 1877), Exiteloceras jenneyi camacki, n. subsp., Exiteloceras jenneyi jenneyi (Whitfield, 1877) and Didymoceras cheyennense (Meek and Hayden, 1856a) are revised, as are Nostoceras monotuberculatum Kennedy and Cobban, 1993a (D. nebrascense and D. stevensoni zones), Oxybeloceras crassum (Whitfield, 1877) (D. stevensoni and E. jenneyi zones), and Spiroxybeloceras meekanum (Whitfield, 1877) (D. cheyennense zone). Solenoceras elegans, n. sp. (D. stevensoni and E. jenneyi zones), Solenoceras bearpawense, n. sp. (D. nebrascense zone), and Solenoceras larimerense, n. sp. (E. jenneyi zone) are also described"--P. 3.

Subjects

Ammonoidea , Cretaceous , Mollusks, Fossil , Paleontology , West (U.S.)

Call Number

QH1 .A4 no.251, 2000

Language

English

Identifiers

DOI: https://doi.org/10.1206/0003-0090(2000)251<0001:LCCHAF>2.0.CO;2
OCLC: 43956005