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Maccoyoceras

Cephalopoda - Nautilida - Subclymeniidae

Taxonomy
Maccoyoceras was named by Miller et al. (1933) [Sepkoski's age data: C Vise Sepkoski's reference number: 524]. Its type is Nautilus (Discites) discors.

It was assigned to Nautilida by Sepkoski (2002); to Trigonoceratidae by Teichert et al. (1964), Korn et al. (2022); and to Subclymeniidae by Korn (2025).

Synonymy list
YearName and author
1933Maccoyoceras Miller et al.
1964Maccoyoceras Teichert et al. p. 429
2002Maccoyoceras Sepkoski
2022Maccoyoceras Korn et al. p. 107
2025Maccoyoceras Korn p. 34

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
RankNameAuthor
classCephalopodaCuvier 1797
subclassNautilia(Wade 1988)
orderNautilidaAgassiz 1847
suborderDomatoceratina
superfamilySubclymenioideaShimansky 1962
familySubclymeniidaeShimansky 1962
genusMaccoyocerasMiller et al. 1933

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.

G. †Maccoyoceras Miller et al. 1933
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†Maccoyoceras discoidale Winchell 1862
†Maccoyoceras discors M'Coy 1844
†Maccoyoceras leveilleanum de Koninck 1844
†Maccoyoceras maccoyi Turner 1953
†Maccoyoceras pentagonum Korn et al. 2022
†Maccoyoceras wrightii Foord 1900
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height816.46.9028.417.86.59
shell diameter847.020.273.650.816.3
shell inflation819.78.8027.421.15.85

Composition: aragoniteo
Environment: marinec
Locomotion: actively mobileo
Life habit: nektobenthico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:35:00
Modified: 2009-09-27 12:10:42
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: base of the Chadian to the top of the Brigantian or 346.70000 to 330.30000 Ma

Collections (5 total)


Time interval Ma Country or state Original ID and collection number
Chadian346.7 - 339.9Algeria M. pentagonum (224275)
Asbian339.9 - 335.9Morocco M. sp. (231793)
Brigantian335.9 - 330.3Ireland M. maccoyi (224293 224461 224467)