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Acanthoceras bellense

Geological Range

Acanthoceras bellense Zone: Middle Cenomanian 95.73 ± 0.61 to 94.96 ± 0.50

Paleogeographic Distribution

According to Kennedy and Cobban (1990a): Central Texas and eastern Wyoming (Kennedy and Cobban, 1990, p. 98).

Remarks

Original presentation: Acanthoceras bellense

Original publication: Adkins, W. S. 1928. Handbook of Texas Cretaceous Fossils. University of Texas Bulletin No. 2838: 1-385, 37 plates. [p. 245, pl. 30, figs 1, 2].

Holotype: TMM 34034.

Type locality: “Bell County, Belton-Temple highway, locality 2410” (Adkins, 1928, p. 246).

Type horizon: Eagle Ford Formation (Adkins, 1928, p. 246).

PaleoDB taxon number: 340918.

Synonyms: Acanthoceras pepperense Moreman, 1942 (source: Kennedy and Cobban, 1990); Acanthoceras stephensoni Adkins, 1928 (source: Kennedy and Cobban, 1990); Acanthoceras validum Moreman, 1942 (source: Kennedy and Cobban, 1990).

References: Kennedy and Cobban (1990a).

Stratigraphic Occurrences

Cenomanian
Acanthoceras bellense zone (WY)
Belle Fourche Formation (WY)
Belle Fourche Formation (Metoicoceras mosbyense zone) (WY)
Chispa Summit Formation (TX)
Dakota Sandstone (NM)
Eagle Ford Group (TX)
Lake Waco Formation (Bluebonnet Member) (TX)
Holotype of <i>Acanthoceras bellense</i> (TMM 3034).
Holotype of Acanthoceras bellense (TMM 3034).
Specimens of <i>Acanthoceras bellense</i> (USNM 420215). See original caption for additional details. Image modified from pl. 12, figs 4 and 7 in Kennedy and Cobban (1990a in <i>Palaeontology</i>), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Specimens of Acanthoceras bellense (USNM 420215). See original caption for additional details. Image modified from pl. 12, figs 4 and 7 in Kennedy and Cobban (1990a in Palaeontology), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Holotypes of <i>Acanthoceras validum</i> Moreman, 1942 (TMM 19802), <i>Acanthoceras</i> n. sp. of Adkins, 1928 (TMM 34033), <i>Acanthoceras stephensoni</i> Adkins, 1928 (TMM 34033), and <i>Acanthoceras pepperense</i> Moreman, 1942 (TMM 19803), all assigned to <i>Acanthoceras bellense</i> by Kennedy and Cobban (1990a). See original caption for additional details. Images modified from text-figs 7-10 in Kennedy and Cobban (1990a in <i>Palaeontology</i>), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Holotypes of Acanthoceras validum Moreman, 1942 (TMM 19802), Acanthoceras n. sp. of Adkins, 1928 (TMM 34033), Acanthoceras stephensoni Adkins, 1928 (TMM 34033), and Acanthoceras pepperense Moreman, 1942 (TMM 19803), all assigned to Acanthoceras bellense by Kennedy and Cobban (1990a). See original caption for additional details. Images modified from text-figs 7-10 in Kennedy and Cobban (1990a in Palaeontology), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Whorl section of <i>Acanthoceras bellense</i>. See original caption for additional details. Image modified from text-figs 5a and 5c in Kennedy and Cobban (1990a in <i>Palaeontology</i>), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Whorl section of Acanthoceras bellense. See original caption for additional details. Image modified from text-figs 5a and 5c in Kennedy and Cobban (1990a in Palaeontology), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Suture pattern of <i>Acanthoceras bellense</i>. See original caption for additional details. Image modified from text-fig. 5c in Kennedy and Cobban (1990a in <i>Palaeontology</i>), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Suture pattern of Acanthoceras bellense. See original caption for additional details. Image modified from text-fig. 5c in Kennedy and Cobban (1990a in Palaeontology), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Stratigraphic position unknown
Stratigraphic position unknown