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Planisphinctes

Cephalopoda - Ammonitida - Perisphinctidae

Taxonomy
Planisphinctes was named as a genus. It is not extant.

It was reranked as Siemiradzkia (Planisphinctes) by Stephanov (1972); it was reranked as Prorsisphinctes (Planisphinctes) by Besnosov and Mitta (1993).

It was assigned to Siemiradzkia by Stephanov (1972); to Prorsisphinctes by Besnosov and Mitta (1993); to Ammonoidea by Sepkoski (2002); to Perisphinctidae by Majidifard (2015); and to Leptosphinctinae by Mitta (2023).

Synonymy list
YearName and author
1972Siemiradzkia (Planisphinctes) Stephanov
1993Prorsisphinctes (Planisphinctes) Besnosov and Mitta p. 131
2002Planisphinctes Sepkoski
2015Planisphinctes Majidifard p. 36
2023Planisphinctes Mitta p. 312

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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
subfamilyLeptosphinctinaeArkell 1950
genusPlanisphinctes

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