baculites

Baculites ("walking stick rock") is an extinct cephalopod genus with a nearly straight shell that is included in the heteromorph ammonites. The genus, which lived worldwide throughout the Late Cretaceous period, was named by Jean Baptiste Lamarck in 1799.

Embryonic Shells of Baculites
Two New Species of Baculites from the Western Interior Region
Baculites from the Lower Part of the Pierre Shale and Equivalent Rocks in the Western Interior
Jaws and Radula of Baculites from the Upper Cretaceous (Campanian) of North America
Jaws and Radula of Baculites from the Upper Cretaceous (Campanian) of North America
The ammonite fauna of the Calcaire à Baculites (Upper Maastrichtian) of the Cotentin Peninsula (Manche, France)
Estimation of allometric shell growth by fragmentary specimens of Baculites tanakae Matsumoto and Obata (a Late Cretaceous heteromor...
Multimethod radiometric age for a bentonite near the top of the Baculites reesidei Zone of southwestern Saskatchewan (Campanian–Maa...
Oxygen and Carbon Isotopic "Dissection"of Baculites compressus (Mollusca: Cephalopoda) from the Pierre Shale (Upper Campanian) of S...
Descriptions of New Species of Fossils, from the Cretaceous Formations of Nebraska, with Observations upon Baculites ovatus and B. c...