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Pachydiscus buckhami

Cephalopoda - Ammonitida - Pachydiscidae

Taxonomy
Pachydiscus buckhami was named by Usher (1952). Its type specimen is GSC 5947 and is a 3D body fossil.

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

Synonyms
Synonymy list
YearName and author
1952Pachydiscus buckhami Usher p. 89 figs. pl. 23, figs. 1, 2, 3, 4, 5
1952Pachydiscus elkhornensis Usher p. 90 figs. Pl. 24, figs. 1, 2
1958Parapachydiscus gabbi Anderson p. 226 figs. Plate 54, figures 3, 3a, 3b, 3c
1958Parapachydiscus panochensis Anderson p. 226 figs. Pl 67, figs 1,1a,2
1959Pachydiscus buckhami Matsumoto pp. 47 - 48 figs. Pl.10, fig. 1a-c; Pl.11, figs. 1a-c, 2a,b; Pl.17, fig. 3; Text-fig. 22

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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
speciesbuckhamiUsher 1952

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 buckhami Usher 1952
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Invalid names: Pachydiscus elkhornensis Usher 1952 [synonym], Parapachydiscus gabbi Anderson 1958 [synonym], Parapachydiscus panochensis Anderson 1958 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmean
shell height1165.0
shell diameter1356.0
shell inflation185.0

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: base of the Santonian to the top of the Campanian or 86.30000 to 72.10000 Ma

Collections (6 total)


Time interval Ma Country or state Original ID and collection number
Santonian86.3 - 83.6USA (California) Parapachydiscus panochensis (44278)
Campanian83.6 - 72.1USA (California) Pachydiscus buckhami (86937 224892)
Campanian83.6 - 72.1USA (Washington) Pachydiscus buckhami (86870)
Early/Lower Campanian83.5 - 70.6USA (California) Pachydiscus buckhami (225634) Parapachydiscus gabbi (44277)