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Pachydiscus (Pachydiscus) cayeuxi

Cephalopoda - Ammonitida - Pachydiscidae

Taxonomy
Pachydiscus cayeuxi was named by de Grossouvre (1894). Its type specimen is MNHN.F.R51867, a shell, and it is a 3D body fossil. Its type locality is Road from Sougraigne to Les Croutets (bancs inferieurs de rudistes), which is in a Santonian carbonate marl in France.

It was recombined as Pachydiscus (Pachydiscus) cayeuxi by Kennedy (1995).

Sister species lacking formal opinion data
P. gollevilensis, P. japonicus, P. suciaensis, P. vaju

Synonymy list
YearName and author
1894Pachydiscus cayeuxi de Grossouvre p. 191 figs. Pl 36, fig 3
1995Pachydiscus (Pachydiscus) cayeuxi Kennedy p. 403 figs. Pl 11, figs 9-11

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyDesmoceratoidea(Zittel 1895)
familyPachydiscidaeSpath 1922
genusPachydiscusZittel 1884
subgenusPachydiscusZittel 1884
speciescayeuxi(de Grossouvre 1894)

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.

†Pachydiscus (Pachydiscus) cayeuxi de Grossouvre 1894
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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 2004, Kiessling 2003

Age range: Late/Upper Santonian or 85.80000 to 83.50000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Late/Upper Santonian85.8 - 83.5France Pachydiscus cayeuxi (179587)