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

Placenticeras polyopsis

Cephalopoda - Ammonitida - Placenticeratidae

Taxonomy
Ammonites polyopsis was named by Dujardin (1837).

It was recombined as Placenticeras polyopsis by Kennedy (1995) and Szives (2007).

Sister species lacking formal opinion data
P. intercalare, P. meeki

Synonymy list
YearName and author
1837Ammonites polyopsis Dujardin p. 232 figs. Pl 17, fig 12
1995Placenticeras polyopsis Kennedy p. 410 figs. Pl 17, figs 2-7,9,10; pl 18, figs 7-12; text-fig 21
2007Placenticeras polyopsis Szives p. 124 fig. 57

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
superfamilyHoplitoidea(Douvillé 1890)
familyPlacenticeratidae
genusPlacenticerasMeek 1876
speciespolyopsis(Dujardin 1837)

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.

†Placenticeras polyopsis Dujardin 1837
show all | hide all
Diagnosis
No diagnoses are available
Measurements
partNmean
shell height151.5
shell diameter1120.0
shell inflation128.5

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 2003, Kiessling 2004

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

Collections (8 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Santonian85.8 - 83.5Spain (Catalunia) Placenticeras polyopsis (162692)
Early/Lower Santonian85.8 - 83.5Spain Placenticeras polyopsis (74468)
Late/Upper Santonian85.8 - 83.5France Placenticeras polyopsis (179115 179119 179223 179587 179659 179660)