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Polyplectus discoides

Cephalopoda - Ammonitida - Hildoceratidae

Taxonomy
Ammonites discoides was named by Zittel (1831).

It was recombined as Polyplectus discoides by Howarth (1992) and Bécaud (2006).

Sister species lacking formal opinion data
P. quadrifidus

Synonyms
Synonymy list
YearName and author
1831Ammonites discoides Zittel
1921Oxynoticeras meunieri Monestier p. 38 figs. Pl 2, figs 15,16; pl 4, fig 37
1992Polyplectus discoides Howarth p. 153 figs. Pl 28, figs 6-8; text-fig 37B
2006Polyplectus discoides Bécaud p. 55 figs. Pl 4, fig 2

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassAmmonoidea()
orderAmmonitida
suborderAmmonitinaHyatt 1889
superfamilyHildoceratoidea(Hyatt 1867)
familyHildoceratidaeHyatt 1867
subfamilyHarpoceratinaeNeumayr 1875
genusPolyplectus
speciesdiscoides(Zittel 1831)

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.

†Polyplectus discoides Zittel 1831
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Invalid names: Oxynoticeras meunieri Monestier 1921 [synonym]
Diagnosis
No diagnoses are available
Measurements
partNmean
height121.2
diameter138.3
inflation14.30
shell height142.2
shell diameter174.8
shell inflation16.50

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 Toarcian to the top of the Late/Upper Toarcian or 182.70000 to 175.60000 Ma

Collections (64 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Toarcian183.0 - 182.0Spain (Granda) Polyplectus discoides (201064 201076 201079 201080 201081 201082)
Early/Lower Toarcian183.0 - 182.0Spain (Murcia) Polyplectus discoides (201421)
Toarcian182.7 - 174.1France Polyplectus discoides (210796 210798 210820 210861 210864 210877 210878 210880 210881)
Bifrons182.0 - 175.6Italy Polyplectus discoides (147041 147043)
Levesquei182.0 - 175.6Germany Polyplectus discoides (59423)
Levesquei182.0 - 175.6Spain Polyplectus discoides (147091 147095 147096 147097 147100)
Levesquei182.0 - 175.6France Polyplectus discoides (148812)
Levesquei182.0 - 175.6France (Deux-Sevrès) Polyplectus discoides (140875)
Middle Toarcian182.0 - 175.6Canada (British Columbia) Polyplectus discoides (55779 55780 56339 56340 56343 56344)
Middle Toarcian - Late/Upper Toarcian182.0 - 175.6Morocco (Taza-Al Hoceima-Taounate) Polyplectus discoides (234054)
Middle Toarcian - Late/Upper Toarcian182.0 - 175.6Canada (British Columbia) Polyplectus discoides (56345)
Variabilis182.0 - 175.6Luxembourg Polyplectus discoides (141384)
Variabilis182.0 - 175.6Spain Polyplectus discoides (126520 126521 131824)
Late/Upper Toarcian180.1 - 175.6Spain Polyplectus discoides (73289 147129)
Late/Upper Toarcian180.1 - 175.6Spain (Granada) Polyplectus discoides (201294 201298 201300 201335 201338)
Late/Upper Toarcian180.1 - 175.6Hungary Polyplectus discoides (108574 108575)
Late/Upper Toarcian180.1 - 175.6France Polyplectus discoides (161668 161670 161671)
Late/Upper Toarcian180.1 - 175.6Canada (British Columbia) Polyplectus discoides (56341 56342 56347)
Thouarsense180.1 - 175.6Bulgaria Polyplectus discoides (151010)
Thouarsense180.1 - 175.6Hungary Polyplectus discoides (108568 108678)
Thouarsense180.1 - 175.6Spain Polyplectus discoides (146976 146977 146979 146980 146981 147086 147088 147089)