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

Placenticeras bidorsatum

Cephalopoda - Ammonitida - Placenticeratidae

Taxonomy
Ammonites bidorsatus was named by Roemer (1841).

It was recombined as Placenticeras bidorsatum by Kennedy (1986) and Kennedy and Kaplan (1995).

Sister species lacking formal opinion data

Synonyms
Synonymy list
YearName and author
1841Ammonites bidorsatus Roemer p. 88 figs. Pl 13, fig 5
1867Ammonites dujardin Schluter p. 25 figs. Pl 4, figs 1,2
1903Diplacomoceras canaliculatum Hyatt p. 243
1986Placenticeras bidorsatum Kennedy p. 56 figs. Pl 8, figs 1-12; pl 14, figs 8,9; text-figs 20-23
1995Placenticeras bidorsatum Kennedy and Kaplan p. 28 figs. Pl 13, figs 1-3; pl 14, figs 1-3; pl 15, figs 1-5; pl 16, figs 1-5; pl 17, figs 1-3; pl 18, figs 1-3

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
speciesbidorsatum(Roemer 1841)

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 bidorsatum Roemer 1841
show all | hide all
Invalid names: Ammonites dujardin Schluter 1867 [synonym], Diplacomoceras canaliculatum Hyatt 1903 [synonym]
Diagnosis
No diagnoses are available