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Acanthoceras muldoonense

Geological Range

AWAITING DETERMINATION.

Paleogeographic Distribution

AWAITING DETERMINATION.

Remarks

Original presentation: Acanthoceras muldoonense

Original publication: Cobban and Scott. 1973. Stratigraphy and ammonite fauna of the Graneros Shale and Greenhorn Limestone near Pueblo, Colorado. USGS Professional Paper 645. [p. 67-68, pl. 4, figs 1, 3, pl. 7, figs 1-13, pl. 11, figs 12, 13, text figs 27, 28].

Holotype: USNM 163941.

Type locality: USGS locality D3965, Pueblo County, Colorado.

Type horizon: Graneros Shale, “17 feet above the Thatcher Limestone Member” (Cobban and Scott, 1973, pl. 6, figs 1, 2 caption).

Zonation: Acanthoceras muldoonense zone = Middle Cenomanian (Cobban et al., 2006).

PaleoDB taxon number: 340917.

Synonyms: Treated as Plesiacanthoceras muldoonense by Kennedy and Cobban (1990a).

References: Cobban and Scott (1973); Kennedy and Cobban (1990a).

Stratigraphic Occurrences

Cenomanian
Acanthoceras muldoonense zone (CO)
Graneros Shale (CO)
Holotype of <i>Acanthoceras muldoonense</i> (USNM 163941). Original unmodified image provided by courtesy of the Smithsonian NMNH and adapted and presented here under a Creative Commons BY-NC 4.0 license (NMNH GUID http://n2t.net/ark:/65665/3954eca34-b490-498e-ae48-85d901369a57).
Holotype of Acanthoceras muldoonense (USNM 163941). Original unmodified image provided by courtesy of the Smithsonian NMNH and adapted and presented here under a Creative Commons BY-NC 4.0 license (NMNH GUID http://n2t.net/ark:/65665/3954eca34-b490-498e-ae48-85d901369a57).
Specimens of <i>Acanthoceras muldoonense</i>. See original caption for additional details. Image modified from pl. 16, figs 1-6 and 9, 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.
Specimens of Acanthoceras muldoonense. See original caption for additional details. Image modified from pl. 16, figs 1-6 and 9, 10 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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