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Placenticeras pseudoplacenta

Cephalopoda - Ammonoida - Placenticeratidae

Taxonomy
Placenticeras pseudoplacenta was named by Hyatt (1903). It is a 3D body fossil.

It was recombined as Proplacenticeras pseudoplacenta by Cobban (1983).

Sister species lacking formal opinion data
P. meeki

Synonymy list
YearName and author
1903Placenticeras pseudoplacenta Hyatt
1983Proplacenticeras pseudoplacenta Cobban p. 11
2011Placenticeras pseudoplacenta Sealey and Lucas p. 374 figs. 3L-M
2019Placenticeras pseudoplacenta Sealey and Lucas p. 150 figs. 53, 70D,E

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classCephalopodaCuvier 1797
RankNameAuthor
subclassColeoideaBather 1888
orderAmmonoida(Haeckel 1866)
orderAmmonitidaHaeckel 1866
suborderAmmonitinaHyatt 1889
superfamilyHoplitoidea(Douvillé 1890)
familyPlacenticeratidae
genusPlacenticerasMeek 1876
speciespseudoplacentaHyatt 1903

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.

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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 2003, Kiessling 2004

Age range: base of the Middle Turonian to the top of the Coniacian or 93.90000 to 85.70000 Ma

Collections (9 total)


Time interval Ma Country or state Original ID and collection number
Late/Upper Turonian93.9 - 89.8USA (South Dakota) Proplacenticeras pseudoplacenta (88005)
Middle Turonian93.9 - 89.8USA (New Mexico) Placenticeras pseudoplacenta (171837 171840 171842) Proplacenticeras pseudoplacenta (178759)
Turonian93.9 - 89.8USA (Minnesota) Proplacenticeras pseudoplacenta (88021)
Turonian - Coniacian93.9 - 85.7USA (Wyoming) Placenticeras pseudoplacenta (87757)
Turonian - Coniacian93.9 - 85.7Canada (British Columbia) Placenticeras pseudoplacenta (87587)
Middle Coniacian89.8 - 85.7USA (Wyoming) Placenticeras pseudoplacenta (88543)