Forresteria

Forresteria
Temporal range: Turonian - Coniacian 93.5–85.8 Ma
Scientific classification
Kingdom: Animalia
Phylum: Mollusca
Class: Cephalopoda
Subclass: †Ammonoidea
Order: †Ammonitida
Family: †Collignoniceratidae
Subfamily: †Barroisiceratinae
Genus: †Forresteria
Reeside, 1932
Species
  • See text

Forresteria is an extinct genus of cephalopod belonging to the Ammonite subclass. They flourished during the late Turonian and early Coniacian ages,[1] and were global in extent.[2] Forresteria alluaudi and Forresteria hobsoni are considered marker fossils for the lower Coniacian in the American West.[1][3]

Forresteria was named for Robert Forrester of Salt Lake City, Utah.[1]

Species

The species in the Forresteria genus include:

References

  1. ^ a b c Cobban, William A. et al (2006) "A USGS Zonal Table for the Upper Cretaceous Middle Cenomanian-Maastrichtian of the Western Interior of the United States Based on Ammonites, Inoceramids, and Radiometric Ages" (Open-File Report 2006–1250) United States Geological Survey, page 20
  2. ^ Toshimitsu, Seiichi and Maiya, Seijuro (December 1986) "Integrated inoceramid-foraminiferal biostratigraphy of the Upper Cretaceous of northwestern Hokkaido, Japan" Cretaceous Research 7(4): pp. 307-326, doi:10.1016/0195-6671(86)90007-8
  3. ^ Molenaar, C. M. et al (2002) "Regional Stratigraphic Cross Sections of Cretaceous Rocks from East-Central Arizona to the Oklahoma Panhandle" United States Geological Survey