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Morphology Ecology and taphonomy   Age range and collections

Hyphantoceras (Madagascarites)

Cephalopoda - Ammonitida - Nostoceratidae

Taxonomy
Madagascarites was named by Collignon (1966) [Sepkoski's age data: K Turo-u K Sant-u].

It was reranked as Hyphantoceras (Madagascarites) by Summesberger (1979), Summesberger (1980) and Klinger (1985).

It was assigned to Hyphantoceras by Summesberger (1979), Summesberger (1980) and Klinger (1985); and to Ammonoidea by Sepkoski (2002).

Synonymy list
YearName and author
1966Madagascarites Collignon
1979Hyphantoceras (Madagascarites) Summesberger p. 122
1980Hyphantoceras (Madagascarites) Summesberger p. 277
1985Hyphantoceras (Madagascarites) Klinger p. 6
2002Madagascarites Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea(Zittel 1884)
orderAmmonitidaHyatt 1889
suborderAncyloceratinaWiedmann 1966
superfamilyTurrilitoidea(Gill 1871)
familyNostoceratidaeHyatt 1894
genusHyphantocerasHyatt 1900
subgenusMadagascarites(Collignon 1966)

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