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Tarrantoceras sellardsi

Geological Range

AWAITING DETERMINATION.

Paleogeographic Distribution

AWAITING DETERMINATION.

Remarks

Original presentation: Mantelliceras sellardsi

Original publication: Adkins. 1928. [p. 239, pl. 25, fig. 1, pl. 26, fig. 4].

Holotype: TMM 34048.

Type locality: Williamson County, Texas (Kennedy and Cobban, 1990).

Type horizon: “Bluebonnet Member of the Lake Waco Formation” (Kennedy and Cobban, 1990a, p. 130).

Other specimens: USNM 420280-420282, USNM 400759, USNM 400760, USNM 400770.

PaleoDB taxon number: 338010.

Synonyms: Tarrantoceras lillianense Stephenson, 1955; Tarrantoceras rotatile Stephenson, 1955 (source: Kennedy and Cobban, 1990a); Tarrantoceras stantoni Stephenson, 1955 (source: Kennedy and Cobban, 1990a).

References: Kennedy and Cobban (1990).

Stratigraphic Occurrences

Cenomanian
Acanthoceras amphibolum zone (CO)
Acanthoceras amphibolum zone (NM)
Acanthoceras amphibolum zone (TX)
Acanthoceras bellense zone (WY)
Lake Waco Formation (Bluebonnet Member) (TX)
Specimens of <i>Tarrantoceras sellardsi</i>. See original caption for additional details. Image modified from pl. 13 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 Tarrantoceras sellardsi. See original caption for additional details. Image modified from pl. 13 in Kennedy and Cobban (1990a in Palaeontology), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.
Specimens of <i>Tarrantoceras sellardsi</i>. See original caption for additional details. Image modified from pl. 14 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 Tarrantoceras sellardsi. See original caption for additional details. Image modified from pl. 14 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>Tarrantoceras sellardsi</i>. Image modified from fig. 6a 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 Tarrantoceras sellardsi. Image modified from fig. 6a 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>Tarrantoceras sellardsi</i>. Image modified from figs 23a and 23b 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 Tarrantoceras sellardsi. Image modified from figs 23a and 23b in Kennedy and Cobban (1990a in Palaeontology), made available through Biodiversity Heritage Library via a CC BY-NC-SA 4.0 license.

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