Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Pachydiscus (Pachydiscus) ootacodensis

Cephalopoda - Ammonitida - Pachydiscidae

Taxonomy
Ammonites ootacodensis was named by Stolickzka (1865) [DISTRIBUTION: Maastrichtian.]. It is not a trace fossil.

It was recombined as Parapachydiscus ootacodensis by Spath (1922), Anderson and Hanna (1935) and Anderson (1958); it was recombined as Pachydiscus (Pachydiscus) ootacodensis by Jones (1963) and Macellari (1986).

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

Synonyms
Synonymy list
YearName and author
1865Ammonites ootacodensis Stolickzka p. 109 figs. pl. 54, figs. 3, 4
1922Parapachydiscus ootacodensis Spath p. 132
1935Parapachydiscus ootacodensis Anderson and Hanna p. 20 figs. Plate 6, figures 1, 2
1958Parapachydiscus ootacodensis Anderson p. 229 figs. Plate 56, figures 3, 4, 4a
1963Pachydiscus (Pachydiscus) hornbyense Jones pp. 38-39 figs. pl. 32, figs. 2-6
1963Pachydiscus (Pachydiscus) ootacodensis Jones p. 38
1986Pachydiscus (Pachydiscus) ootacodensis Macellari p. 49

Is something missing? Join the Paleobiology Database and enter the data

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
speciesootacodensis(Stolickzka 1865)

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.

show all | hide all
Invalid names: Pachydiscus (Pachydiscus) hornbyense Jones 1963 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmeanminimummaximummedians.d.
shell height850.710.0211.053.966.9
shell diameter8102.619.0442.099.0143.5
shell inflation822.64.0098.024.032.2

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 Late/Upper Campanian to the top of the Early/Lower Maastrichtian or 83.50000 to 66.00000 Ma

Collections (18 total)


Time interval Ma Country or state Original ID and collection number
Campanian83.6 - 72.1USA (California) Parapachydiscus stanislausensis (86859)
Campanian83.6 - 72.1Canada (British Columbia) Pachydiscus hornbyense (158387)
Late/Upper Campanian83.5 - 70.6USA (Alaska) Pachydiscus ootacodensis (88816 158227 158290 158295 158296 158377)
Late/Upper Campanian83.5 - 70.6USA (California) Pachydiscus ootacodensis (225372)
Late/Upper Campanian - Early/Lower Maastrichtian83.5 - 66.0USA (California) Pachydiscus ootacodensis (158103 185401 225732)
Maastrichtian72.1 - 66.0Mexico (Baja California) Parapachydiscus ootacodensis (158099)
Early/Lower Maastrichtian70.6 - 66.0Antarctica (Seymour Island) Pachydiscus ootacodensis (3158)
Early/Lower Maastrichtian70.6 - 66.0Antarctica Pachydiscus ootacodensis (158435 158453 158454)
Late/Upper Maastrichtian70.6 - 66.0Antarctica (Seymour Island) Pachydiscus ootacodensis (166009)