Plesiacanthoceras wyomingense

Geological Range

Plesiacanthoceras wyomingense Zone: Middle Cenomanian 94.96 ± 0.50 to 94.71 ± 0.49

Cenomanian to Turonian

Kansas to Montana

Original presentation: Metoicoceras wyomingensis

Original publication: Reagan. 1924. Pan-American Geologist 41(3) [p. 181, pl. 19, figs 1, 2].

Holotype: Stanford University 119.

Type locality: northwest of Casper, Wyoming (Cobban, 1987, p. 16).

Type horizon: Frontier Formation (Cobban, 1987, p. 16).

Zonation: Acanthoceras bellense zone = Middle Cenomanian (Cobban et al., 2006).

PaleoDB taxon number: 333499.

References: Cobban (1987).

Turonian: Carlile Shale (KS); Greenhorn Limestone (Pfeifer Member) (KS)
Cenomanian: Acanthoceras bellense zone (WY); Belle Fourche Formation (MT); Cody Shale (WY); Dakota Sandstone (NM); Dakota Sandstone (Paguate Sandstone Member) (NM); Frontier Formation (WY); Greenhorn Limestone (KS); Greenhorn Limestone (Lincoln Shale Member) (KS)