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Actinoceras lesperancei

Cephalopoda - Actinocerida - Actinoceratidae

Taxonomy
Actinoceras lesperancei was named by Holland and Copper (2008). Its type specimen is GSC124391, a shell, and it is a 3D body fossil. Its type locality is A0905. Homard Circle road, which is in a Richmondian/Hirnantian carbonate limestone/shale in the Ellis Bay Formation of Canada.

Sister species lacking formal opinion data

Synonymy list
YearName and author
2008Actinoceras lesperancei Holland and Copper pp. 1021 - 1022 figs. 3A, 3C

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassOrthoceratoidea(M'Coy 1844)
orderActinoceridaTeichert 1933
familyActinoceratidaeSaeman 1853
genusActinocerasBronn 1837
specieslesperancei

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.

Actinoceras lesperancei Holland and Copper 2008
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Diagnosis
ReferenceDiagnosis
C. H. Holland and P. Copper 2008Large conch with siphuncle occupying about 50% of diameter, close to ventral wall but not in contact with it. Long cyrtochoanitic septal necks, forming continuous convex curve with connecting rings; strongly expanded siphuncular segments.
Measurements
No measurements are available
Composition: aragoniteo
Environment: marinec
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-10-06 14:33:57
Modified: 2007-09-07 05:00:50
Source: o = order, c = class
References: Kiessling 2004, Aberhan et al. 2004

Age range: base of the Richmondian to the top of the Rhuddanian or 449.60000 to 440.80000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Katian453.0 - 445.2Canada (Quebec) Actinoceras lesperancei (204335)
Richmondian - Hirnantian449.6 - 443.4Canada (Québec) Actinoceras lesperancei (type locality: 204333)
Rhuddanian443.4 - 440.8Canada (Quebec) Actinoceras lesperancei (204332)