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Gracilisphinctes arkelli

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy
Gracilisphinctes arkelli was named by Collignon (1958). It is not extant. Its type specimen is UBGD.010032, UBGD.010033. Its type locality is Andranomantsy I, which is in a Bathonian marine marl in Madagascar.

Sister species lacking formal opinion data
G. minimeumbilicatus, G. subtilicostatus

Synonymy list
YearName and author
1958Gracilisphinctes arkelli Collignon pp. Pl. VI figs. Figs 31-33

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyPerisphinctoidea(Steinman 1890)
familyPerisphinctidaeSteinmann 1890
genusGracilisphinctes
speciesarkelli

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.

†Gracilisphinctes arkelli Collignon 1958
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Diagnosis
No diagnoses are available