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Arctocephalites

Cephalopoda - Ammonitida - Cardioceratidae

Taxonomy
Arctocephalites is a genus. It is not extant. It is the type genus of Arctocephalitinae.

It was assigned to Cadoceratinae by Arkell et al. (1957); to Ammonoidea by Sepkoski (2002); and to Arctocephalitinae by Mitta (2016).

Species
A. (Cranocephalites), A. alticostus, A. saypoensis
Species lacking formal opinion data
A. sphaericus

Synonymy list
YearName and author
1957Arctocephalites Arkell et al. p. 301
2002Arctocephalites Sepkoski
2016Arctocephalites Mitta p. 360

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyStephanoceratoidea(Newmayr 1875)
familyCardioceratidaeSiemiradzki 1891
subfamilyArctocephalitinaeMeledina 1968
genusArctocephalites

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.

Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height327.318.042.027.012.1
shell diameter359.836.096.062.030.1
shell inflation311.66.5016.015.05.22

Composition: aragoniteo
Environment: marinec
Locomotion: fast-movingo
Life habit: nektonico
Diet: carnivoreo
Vision: well-developedc
Created: 2005-01-28 02:27:03
Modified: 2009-10-08 14:14:55
Source: o = order, c = class
References: Kiessling 2003, Kiessling 2004

Age range: base of the Middle Bathonian to the top of the Bathonian or 167.70000 to 166.10000 Ma

Collections (46 total)


Time interval Ma Country or state Original ID and collection number
Bathonian168.3 - 166.1USA (Alaska) A. alticostus (68801 68821) A. alticostus, A. costidensus (68759) A. alticostus, A. sp. (68790) A. costidensus (68754 68758 68761 68769 68806) A. pompeckji (68770 68772 68805) A. pompeckji, A. costidensus (68771 68773 68774) A. sp. (68755 68766 68793 68797 68800 68802 68804 68807 68820) A. sp., A. alticostus (68808)
Bathonian168.3 - 166.1USA (Montana) A. gracilis (68865) A. maculatus (68851 68861) A. sawtoothensis (68843 68846 68854 68860 68863) A. sawtoothensis, A. gracilis, A. platynotus (68844) A. sawtoothensis, A. maculatus (68850 68856) A. saypoensis (68869) A. sp. (68840 68842 68853 68855 68857 68859 68862 68867)
Middle Bathonian167.7 - 164.7North Atlantic A. sphaericus, A. sp. (35299)