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Xenocephalites vicarius

Cephalopoda - Ammonitida - Sphaeroceratidae

Taxonomy
Xenocephalites vicarius was named by Imlay (1953). Its type specimen is USNM 108041, a shell, and it is a 3D body fossil. Its type locality is USGS Mesozoic 22437, Iniskin Peninsula, which is in a Callovian marine sandstone in the Chinitna Formation of Alaska.

Synonyms
Synonymy list
YearName and author
1953Xenocephalites hebetus Imlay p. 78 figs. Pl 29, figs 6-8,11
1953Xenocephalites vicarius Imlay p. 78 figs. Pl 28, figs 1-8
1993Xenocephalites vicarius Arthur et al. p. 38 figs. Pl 3, fig 8

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitidaHaeckel 1866
suborderAmmonitinaHyatt 1889
superfamilyStephanoceratoidea(Newmayr 1875)
familySphaeroceratidaeBuckman 1920
subfamilyEurycephalitinaeThierry 1976
genusXenocephalites
speciesvicarius

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.

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Invalid names: Xenocephalites hebetus Imlay 1953 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height319.817.023.020.03.00
shell diameter336.933.046.033.07.51
shell inflation33.632.008.003.003.21

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 Bathonian to the top of the Callovian or 168.20000 to 161.50000 Ma

Collections (17 total)


Time interval Ma Country or state Original ID and collection number
Bathonian168.2 - 165.3Canada (British Columbia) Xenocephalites vicarius (37608 37609)
Bathonian - Callovian168.2 - 161.5Canada (British Columbia) Xenocephalites hebetus (37631) Xenocephalites vicarius (37627 37630)
Callovian165.3 - 161.5USA (Alaska) Xenocephalites hebetus (68881 68985 158914) Xenocephalites hebetus, Xenocephalites vicarius (158704) Xenocephalites vicarius (68988 158691 type locality: 158692 158697 158702 158708 158908)
Early/Lower Callovian165.3 - 161.5Canada (British Columbia) Xenocephalites vicarius (185050)