The Lower Cretaceous ammonite Schloenbachia leonensis Conrad var. equidistans Cragin /

Ammonite faunas of the Sarten sandstone (Cretaceous), Luna County, New Mexico /
by: Cobban, William A., 1916-2015
Published: (1987)

The late Cretaceous ammonites Scaphites leei Reeside and Scaphites hippocrepis (DeKay) in the western interior of the United States /
by: Cobban, William A., 1916-2015
Published: (1969)

Upper Cretaceous (Campanian and Maestrichtian) ammonites from southern Alaska.
by: Jones, David Lawrence, 1930-
Published: (1963)

Ammonites of early cretaceous age (Valanginian and Hauterivian) from the Pacific coast states.
by: Imlay, Ralph W. (Ralph Willard), 1908-1989
Published: (1960)

Characteristic Lower Cretaceous megafossils from northern Alaska.
by: Imlay, Ralph W. (Ralph Willard), 1908-1989
Published: (1960)

The Cretaceous ammonites of Venezuela /
by: Renz, Otto, 1906-
Published: (1982)

Lower Cretaceous ammonites from North-east England : the Hauterivian genus Simbirskites.
by: Rawson, Peter Franklin
Published: (1971)

Some acanthoceratid ammonites from Upper Cenomanian (Upper Cretaceous) rocks of Wyoming /
by: Cobban, William A., 1916-2015
Published: (1988)

The Upper Cretaceous ammonite Rhaeboceras Meek in the western interior of the United States /
by: Cobban, William A., 1916-2015
Published: (1987)

Upper Cretaceous rocks and ammonite faunas of southwestern New Mexico /
by: Cobban, William A., 1916-2015
Published: (1989)

Lower Cretaceous ammonites from north-east England : the Hauterivian heteromorph Aegocrioceras /
by: Rawson, Peter Franklin
Published: (1975)

The Late Cretaceous cephalopod Haresiceras Reeside and its possible origin /
by: Cobban, William A., 1916-2015
Published: (1964)

Lower Turonian (Cretaceous) ammonites from south-east Nigeria /
by: Zaborski, P. M. P.
Published: (1987)

The Upper Cretaceous (Turonian) ammonite family Coilopoceratidae Hyatt in the western interior of the United States /
by: Cobban, William A., 1916-2015
Published: (1980)

Ammonites from the Buchia zones in northwestern California and southwestern Oregon /
by: Imlay, Ralph W. (Ralph Willard), 1908-1989, et al.
Published: (1970)

Studies of the Mowry shale (Cretaceous) and contemporary formations in the United States and Canada /
by: Reeside, John B. (John Bernard), 1889-1958, et al.
Published: (1960)

Some Middle Cenomanian (Upper Cretaceous) Acanthoceratid Ammonites from the western interior of the United States /
by: Cobban, William A., 1916-2015
Published: (1987)

American upper cretaceous echinoidea.
by: Cooke, C. Wythe (Charles Wythe), 1887-1971
Published: (1953)

New Upper Cretaceous Ostreidae from the Gulf region.
by: Stephenson, Lloyd William, 1876-1962
Published: (1936)

The ammonite zonal sequence and ammonite taxonomy in the Douvilleiceras mammillatum superzone (Lower Albian) in Europe /
by: Owen, H. G. (Hugh Gwyn), 1933-
Published: (1988)

Mid-Cretaceous ammonites of Nigeria : new amphisbaenians from Kenya ; English Wealden Equisetales ; Faringdon Sponge Gravel Bryozoa.
Published: (1990)

Foraminifera and stratigraphy of the upper part of the Pierre Shale and lower part of the Fox Hills Sandstone (Cretaceous) north-central South Dakota /
by: Mello, James F., 1936-
Published: (1969)

Contributions to Late Cretaceous stratigraphy and paleontology, western Montana.
Published: (1991)

The Upper Cretaceous floras of Alaska /
by: Hollick, Charles Arthur, 1857-1933
Published: (1930)

Lower Cenomanian and late Albian (cretaceous) ammonites, especially Lyelliceridae of Texas and Mexico /
by: Young, Keith, 1918-2004
Published: (1979)

New and little-known ammonites from the Upper Cretaceous (Cenomanian and Turonian) of the western interior of the United States /
by: Cobban, William A., 1916-2015
Published: (1971)

Stratigraphy of the Niobrara formation at Pueblo, Colorado /
by: Scott, Glenn R., 1918-2012, et al.
Published: (1964)

Ammonites and some characteristic bivalves from the Upper Cretaceous Frontier Formation, Natrona County, Wyoming /
by: Cobban, William A., 1916-2015
Published: (1990)

New Upper Cretaceous Amphineura (Mollusca) /
by: Smith, Allyn G., 1893-1976
Published: (1968)

Owl Creek (Upper Cretaceous) fossils from Crowleys Ridge, Southeastern Missouri.
by: Stephenson, Lloyd William, 1876-1962
Published: (1955)

Upper cretaceous foraminifera of the gulf coastal region of the United States and adjacent areas /
by: Cushman, Joseph A.
Published: (1946)

Mid-Cretaceous (Turonian) ammonite fauna from Fence Lake area of west-central New Mexico /
by: Cobban, William A., 1916-2015
Published: (1983)

Lower Cretaceous deposits in California and Oregon /
by: Anderson, Frank Marion, 1863-1945
Published: (1938)

Upper Cretaceous gastropods from the Pierre Shale at Red Bird, Wyoming /
by: Sohl, Norman F. (Norman Frederick), 1924-
Published: (1967)

Foraminifera from the Pierre Shale (Upper Cretaceous) at Red Bird, Wyoming /
by: Mello, James F., 1936-
Published: (1971)

Upper Cretaceous ammonites from the Calabar region, south-east Nigeria /
by: Zaborski, P. M. P.
Published: (1985)