PBDB Taxon

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

Trematoceras elegans

Cephalopoda - Pseudorthocerida - Trematoceratidae

Taxonomy

Orthoceras elegans was named by Muenster (1831). It is the type species of Trematoceras.

It was recombined as Trematoceras elegans by Pohle and Klug (2024).

Synonyms

Orthoceras campanile was named by Mojsisovics (1869).

It was recombined as Trematoceras campanile by Zakharov (1978); it was recombined as Michelinoceras campanile by Silberling and Nichols (1982); it was synonymized subjectively with Trematoceras elegans by Pohle and Klug (2024).
Orthocera freieslebense was named by Klipstein (1843). It is a 3D body fossil. Its type locality is St. Cassian (Klipstein BMNH coll), which is in a Julian carbonate limestone in the Cassian Formation of Italy.

It was synonymized subjectively with Trematoceras elegans by Pohle and Klug (2024).
Orthocera politum was named by Klipstein (1843). It is a 3D body fossil. Its type locality is St. Cassian (Klipstein BMNH coll), which is in a Julian carbonate limestone in the Cassian Formation of Italy.

It was recombined as Orthoceras politum by von Mojsisovics (1882) and Arthaber (1896); it was recombined as Trematoceras politum by Schastlivtseva (1988); it was synonymized subjectively with Trematoceras elegans by Pohle and Klug (2024).
Orthoceras dubium was named by Hauer (1847).

It was recombined as Trematoceras dubium by Kummel and Erben (1968) and Schastlivtseva (1988); it was synonymized subjectively with Trematoceras elegans by Pohle and Klug (2024).
Orthoceras freieslebense was named by Klipstein (1843).

It was synonymized subjectively with Orthoceras elegans by von Mojsisovics (1882).

Synonymy list

Year	Name and author
1831	Orthoceras elegans Muenster
1843	Orthoceras freieslebense Klipstein
1843	Orthocera freieslebense Klipstein p. 143 figs. Pl 9, figs 4a,b
1843	Orthocera politum Klipstein p. 144 figs. Pl 9, fig 6
1847	Orthoceras dubium Hauer p. 260 figs. Pl 7, figs 3,4,6,7,8
1869	Orthoceras campanile Mojsisovics
1873	Orthoceras dubium von Mojsisovics p. 3 figs. Pl 1, figs 4,5
1882	Orthoceras campanile von Mojsisovics
1882	Orthoceras dubium von Mojsisovics
1882	Orthoceras elegans von Mojsisovics
1882	Orthoceras politum von Mojsisovics
1896	Orthoceras campanile Arthaber p. 24
1896	Orthoceras politum Arthaber p. 24
1907	Orthoceras campanile Diener
1914	Orthoceras campanile Smith p. 141 figs. Pl 104, figs 17-19
1915	Orthoceras campanile Arthaber
1927	Orthoceras elegans Ogilvie Gordon
1968	Trematoceras dubium Kummel and Erben
1978	Trematoceras campanile Zakharov figs. Pl 2, figs 1-6
1982	Michelinoceras campanile Silberling and Nichols p. 63 figs. Pl 33, figs 1,2
1988	Trematoceras dubium Schastlivtseva p. 30
1988	Trematoceras politum Schastlivtseva p. 30
2024	Trematoceras elegans Pohle and Klug p. 22 figs. 2A-H, 9A-F, 10D

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

Rank	Name	Author
kingdom	Animalia	()
—	Bilateria
—	Eubilateria	Ax 1987
—	Protostomia
—	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca

Rank	Name	Author
class	Cephalopoda	Cuvier 1797
subclass	Orthoceratoidea	Zhuravleva 1994
order	Pseudorthocerida
family	Trematoceratidae	Zakharov 1996
genus	Trematoceras	Eichwald 1851
species	elegans	(Muenster 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.

†Trematoceras elegans Muenster 1831

show all | hide all

Invalid names: Orthocera freieslebense Klipstein 1843 [synonym], Orthocera politum Klipstein 1843 [synonym], Orthoceras campanile Mojsisovics 1869 [synonym], Orthoceras dubium Hauer 1847 [synonym], Orthoceras freieslebense Klipstein 1843 [synonym]

Diagnosis

No diagnoses are available