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Imbricatoceras subundulatum

Cephalopoda - Orthocerida - Orthoceratoidea

Taxonomy
Orthoceras subundulatum was named by Portlock (1843). Its type specimen is GSM 54308, a shell, and it is a 3D body fossil. Its type locality is Killey Bridge Fm. locality 1, NE of Pomeroy, which is in a Richmondian offshore mudstone/siltstone in the Killey Bridge Formation of the United Kingdom.

It was recombined as Tyrioceras subundulatum by Evans (1993); it was recombined as Imbricatoceras subundulatum by Holland (1992), Holland (2000).

Sister species lacking formal opinion data
I. ascendens

Synonymy list
YearName and author
1843Orthoceras subundulatum Portlock p. 373 figs. 2 Pl. 28
1992Imbricatoceras subundulatum Holland p. 123
1993Tyrioceras subundulatum Evans p. 176 figs. 7, 13
2000Imbricatoceras subundulatum Holland p. 178 fig. 11

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
familyOrthoceratoidea()
orderOrthoceridaKuhn 1940
familyOrthoceratidae
subfamilyMichelinoceratinaeFlower 1945
genusImbricatoceras
speciessubundulatum()

If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.

†Imbricatoceras subundulatum Portlock 1843
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: aragoniteo
Environment: marineo
Locomotion: actively mobileo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-10-06 14:35:22
Modified: 2009-04-13 11:56:59
Source: o = order, c = class
References: Aberhan et al. 2004, Kiessling 2004

Age range: base of the Actonian to the top of the Telychian or 454.00000 to 432.90000 Ma

Collections (7 total)


Time interval Ma Country or state Original ID and collection number
Actonian454.0 - 453.0United Kingdom (Wales) Orthoceras subundulatum (76475)
Onnian453.0 - 449.5United Kingdom (Wales) Orthoceras subundulatum (76476)
Richmondian449.6 - 445.5United Kingdom (Northern Ireland) Orthoceras subundulatum (type locality: 89260) Tyrioceras subundulatum (89261)
Telychian438.6 - 432.9United Kingdom (Scotland) Imbricatoceras subundulatum (159984 159985)
Telychian438.6 - 432.9United Kingdom Imbricatoceras subundulatum (79882)