Forresteria alluaudi, from Fossil Cephalopods in Utah.

Belongs within: Collignoniceratidae.

Forresteria is an Upper Cretaceous (Lower Coniacian) genus of ammonites with at least a mediolateral tubercle present on the inner whorls that may later disappear or fuse with the umbilical or ventrolateral tubercle (Wright et al. 1996).

<==Forresteria Reeside 1932WCH96
    |--F. (Forresteria) (see below for synonymy)WCH96
    |    |--F. (F.) alluaudi (Boule, Lemoine & Thevenin 1907) (see below for synonymy)WCH96
    |    |--‘Barroisiceras’ brancoi Solger 1904 [=*Solgerites brancoi]WCH96
    |    |--*Zumpangoceras’ burkhardti Basse 1947WCH96
    |    |--*Collignoniceras’ hammersleyi Hoepen 1955 [=*Collignonella hammersleyi]WCH96
    |    |--F. (F.) hobsoni (Reeside 1932) (see below for synonymy)WCH96
    |    |--*Basseoceras’ krameri Hoepen 1968WCH96
    |    |--*Eboroceras’ magnumbilicatum Basse 1947WCH96
    |    |--*Eedenoceras’ multicostatum Hoepen 1968WCH96
    |    `--F. (F.) yezoensis Matsumoto 1969 [=F. (*Muramotoa) yezoensis]WCH96
    `--F. (Harleites Reeside 1932) [incl. Alstadenites Reeside 1932, Reesideoceras Basse 1947]WCH96
         `--F. (H.) petrocoriensis (Coquand 1859) (see below for synonymy)WCH96

Forresteria Reeside 1932 (Forresteria) [incl. Basseoceras Hoepen 1968 non Collignon 1965, Collignonella Hoepen 1957, Collignoniceras Hoepen 1955 non Breistroffer 1947, Eboroceras Basse 1947, Eedenoceras Hoepen 1968, Muramotoa Matsumoto 1969, Neokanabiceras Collignon 1965, Solgerites Reeside 1932, Zumpangoceras Basse 1947]WCH96

Forresteria (Forresteria) alluaudi (Boule, Lemoine & Thevenin 1907) [=Acanthoceras (Prionotropis) alluaudi; incl. Barroisiceras (*F.) forresteri Reeside 1932]WCH96

Forresteria (Forresteria) hobsoni (Reeside 1932) [=Barroisiceras (F.) hobsoni; incl. *Neokanabiceras madagascariensis Collignon 1965]WCH96

Forresteria (Harleites) petrocoriensis (Coquand 1859) [=Ammonites petrocoriensis; incl. A. alstadenensis Schlüter 1876, Forresteria (Harleites) alstadenensis, *Reesideoceras gallicum Basse 1947, F. (H.) gallicum, Barroisia haberfellneri var. harlei Grossouvre 1894, F. (*H.) harlei]WCH96

*Type species of generic name indicated


[WCH96] Wright, C. W., J. H. Calloman & M. K. Howarth. 1996. Treatise on Invertebrate Paleontology pt L. Mollusca 4, revised vol. 4. Cretaceous Ammonoidea. The Geological Society of America, Inc.: Boulder (Colorado), and The University of Kansas: Lawrence (Kansas).

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