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Xenocephalites grantmackiei

Cephalopoda - Ammonitida - Sphaeroceratidae

Taxonomy
Xenocephalites grantmackiei was named by Westermann and Hudson (1991). It is not extant. Its type specimen is Auckland University C1422, a partial shell. Its type locality is Te Whakapatiki Stream R17/f566, which is in a Temaikan marine sandstone in New Zealand.

Sister species lacking formal opinion data
X. gottschei, X. stipanicici

Synonymy list
YearName and author
1991Xenocephalites grantmackiei Westermann and Hudson p. 690 figs. Figure 3.1, 3.2

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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
speciesgrantmackiei

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.

†Xenocephalites grantmackiei Westermann and Hudson 1991
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Diagnosis
ReferenceDiagnosis
G. E. G. Westermann and N. Hudson 1991Relatively evolute and round-whorled Xenocephalites with extremely coarse, prorsiradiate costae.