Current Taxonomic Status of Late Cretaceous Ammonoid Species from the Western Interior Seaway Assigned to the Family Binneyitidae (Ammonitina: Haplocerataceae)

Jonathan R. Hendricks

Paleontological Research Institution, Ithaca, New York

Note: Names in green are accepted; names in red are synonyms. Return to main list here. This page was last updated May 19, 2017.

Class Cephalopoda

Order Ammonoidea Zittel, 1884

Suborder Ammonitina Hyatt, 1889

Duration: Aalenian to Lower Santonian (Source: Wright et al., 1996).

Superfamily Haplocerataceae Zittel, 1884

Duration: Aalenian to Lower Santonian (Source: Wright et al., 1996).

Family Binneyitidae Reeside, 1927

Duration: Upper Albian to Lower Santonian (Source: Wright et al., 1996).

 Genus Borissiakoceras Arkhanguelsky, 1916

Type species: Borissiakoceras mirabilis Arkhanguelsky, 1916

Duration: Upper Albian to Lower Turonian (Source: Wright et al., 1996).

Borissiakoceras orbiculatum Stephenson, 1955

Original presentation: Borissiakoceras orbiculatum

Original publication: Stephenson. 1955. [p. 64, pl. 6, figs 1-4].

Holotype: USNM 108832.

Type locality: near Mansfield, Texas (Kennedy and Cobban, 1990a).

Type horizon: “basal Eagle Ford Group” (Kennedy and Cobban, 1990a, p. 85).

Other specimens: USNM 420185-420194.

WIS occurrences:

Cenomanian: Eagle Ford Group (lower) (TX) (Kennedy and Cobban, 1990a).

Zonations: Acanthoceras amphibolum zone (WY, CO, KS, and TX), Sciponoceras gracile zone (north-central TX) (Kennedy and Cobban, 1990a).

PaleoDB taxon number: 333410.

References: Kennedy and Cobban (1990a).