PBDB Taxon

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

Endocerida

Cephalopoda - Endocerida

Taxonomy

Endocerida was named by Hyatt in Zittel (1900).

It was assigned to Nautiloidea by Evans (1993), Evans (1994), Evans (2011); to Cephalopoda by Kröger and Evans (2011), Kröger (2012), Kröger (2013); and to Endoceratoidea by Teichert et al. (1964), Crick (1981), Wade (1988), Pohle et al. (2022).

Subtaxa

Baltoceras pusillum, Botryceratidae, Choreanoceroides, Cyrtendoceratidae, Endoceratidae, Eocameroceras, Hoyoceras, Pronajaceras, Proterocameroceratidae, Thylacoceratidae, Trinitoceras, Yehlioceras, Yorkoceratidae

Synonyms

Baltoceras pusillum was named by Ruedemann (1906). It is not extant. Its type specimen is a specimen in the NYSM, a shell.

It was recombined as Endoceras pusillum by Ulrich et al. (1944); it was recombined as Rioceras pusillum by Flower (1964); it was considered a nomen dubium by Kröger and Landing (2009).

Synonymy list

Year	Name and author
1900	Endocerida Hyatt in Zittel
1906	Baltoceras pusillum Ruedemann p. 431 figs. 4-5 Pl. 9
1944	Endoceras pusillum Ulrich et al.
1964	Rioceras pusillum Flower p. 105
1964	Endocerida Teichert et al. p. 165
1981	Endocerida Crick p. 226
1988	Endocerida Wade
1993	Endocerida Evans p. 163
1994	Endocerida Evans p. 16
2011	Endocerida Evans
2011	Endocerida Kröger and Evans
2012	Endocerida Kröger
2013	Endocerida Kröger
2022	Endocerida Pohle et al. p. 21

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

Rank	Name	Author
phylum	Mollusca
class	Cephalopoda	Cuvier 1797
subclass	Endoceratoidea	Teichert 1933
order	Endocerida	Hyatt in Zittel 1900
order	Endocerida	Hyatt in Zittel 1900

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.

Or. †Endocerida Hyatt in Zittel 1900

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Fm. †Botryceratidae Flower 1968

G. †Botryceras

G. †Choreanoceroides

Fm. †Cyrtendoceratidae Hyatt 1900

G. †Cyclocyrtendoceras Balashov 1961

G. †Cyrtendoceras Remelé 1886

†Cyrtendoceras remelei Foerste 1932

G. †Cyrtovaginoceras Kobayashi 1934

Fm. †Endoceratidae Hyatt 1884

G. †Allocotoceras Teichert and Glenister 1953

G. †Anthoceras Teichert and Glenister 1954

†Anthoceras arrowsmithense Stait and Laurie 1985

†Anthoceras warburtoni Teichert and Glenister 1954

Invalid names: Lobocyclendoceras Balashov 1968 [synonym], Paracyclendoceras Balashov 1968 [synonym]

G. †Cameroceras Conrad 1842

†Cameroceras curvatum Ruedemann 1906

†Cameroceras hasta d'Eichwald 1860

Invalid names: Endoceras megastoma Eichwald 1857 [synonym], Rossicoceras pirguense Balashov 1968 [synonym]

†Cameroceras motsognir Kröger and Aubrechtová 2019

†Cameroceras planum Balashov 1968

†Cameroceras regulus Eichwald 1860

Invalid names: Endoceras iucundum Stumbur 1956 [synonym], Orthoceras turris Angelin 1880 [synonym]

†Cameroceras rowenaense Frey 1995

†Cameroceras trentonense Conrad 1842

†Cameroceras turrisoides Kröger 2013

Invalid names: Rossicoceras Balashov 1961 [synonym]

G. †Changkiuoceras Shimizu and Obata 1935

G. †Chisiloceras Gortani 1934

†Chisiloceras luganusense Balashov 1968

G. †Cyclendoceras Grabau and Shimer 1910

†Cyclendoceras annulatum Hall 1847

†Cyclendoceras clarki Flower 1958

†Cyclendoceras dubium Strand 1934

†Cyclendoceras norvegicum Strand 1934

G. †Dideroceras Flower 1950

†Dideroceras festinans Blake 1882

†Dideroceras gracile Flower 1964

†Dideroceras holmi Flower 1964

†Dideroceras magnum Flower 1964

†Dideroceras ventrale Flower 1964

†Dideroceras wahlenbergi Foord 1887

G. †Endoceras Hall 1847

†Endoceras annuliferum Flower 1941

†Endoceras aristides Billings 1865

†Endoceras baffinense Foerste 1928

†Endoceras baylorense Ulrich et al. 1944

†Endoceras calvini Ulrich et al. 1944

†Endoceras champlainense Ruedemann 1906

†Endoceras deparcum Billings 1859

†Endoceras eburneolum Stauffer 1937

†Endoceras fulgur Billings 1866

Invalid names: Orthoceras propinquum Billings 1857 [replaced]

†Endoceras glaucus Billings 1865

†Endoceras hageri Hall 1861

†Endoceras hasta d'Eichwald 1860

†Endoceras hudsoni Ruedemann 1906

†Endoceras indigator Billings 1865

†Endoceras knighti Ulrich et al. 1944

†Endoceras lamottense Ulrich et al. 1944

†Endoceras lawrencense Ulrich et al. 1944

†Endoceras logani Ulrich et al. 1944

†Endoceras magister Ruedemann 1906

†Endoceras microlobatum Flower 1958

†Endoceras naekki Kröger and Aubrechtová 2019

†Endoceras perannulatum Portlock 1843

†Endoceras philipsburgense Ulrich et al. 1944

†Endoceras primigenium Vanuxem 1842

†Endoceras proteiforme Hall 1847

†Endoceras raymondi Flower 1958

†Endoceras richardsoni Ulrich et al. 1944

†Endoceras sansabaense Ulrich et al. 1944

†Endoceras seticornium Strand 1934

†Endoceras tityrus Billings 1865

†Endoceras trundlesense Ulrich et al. 1944

†Endoceras vaginatum Schlotheim 1820

Invalid names: Cyclendoceras buchi Lesnikova 1949 [synonym], Lobocyclendoceras kundense Balashov 1968 [synonym], Orthoceratites cancellatus d'Eichwald 1842 [synonym], Orthoceratites trochlearis Hisinger 1831 [synonym], Protocyclendoceras balticum Balashov 1968 [synonym], Protocyclendoceras iruense Balashov 1968 [synonym]

†Endoceras warthini Ulrich et al. 1944

†Endoceras yellvillense Ulrich et al. 1944

G. †Foerstellites Kobayashi 1940

G. †Hemipiloceras Shimizu and Obata

G. †Ignoceras

G. †Kailuanoceras Obata 1940

G. †Kaipingoceras Shimizu and Obata 1937

G. †Kiotoceras

G. †Kotoceras Kobayashi 1934

†Kotoceras grabaui Kobayashi 1927

Invalid names: Vaginoceras frechi Kobayashi 1927 [synonym]

G. †Kutorgoceras Balashov 1962

G. †Lamottoceras Flower 1955

†Lamottoceras franklini Flower 1958

†Lamottoceras nodosum Flower 1955

†Lamottoceras ruedemanni Flower 1955

G. †Linchengoceras Obata 1940

G. †Liskeardia Wilson 1939

G. †Najaceras

G. †Nanno Clarke 1894

†Nanno noveboracum Ruedemann 1906

G. †Neokaipingoceras Obata 1940

G. †Palaeocyclendoceras Balashov 1968

†Palaeocyclendoceras eichwaldi Balashov 1968

G. †Paleocyclendoceras Balashov 1968

†Paleocyclendoceras damesii Dewitz 1880

†Paleocyclendoceras rectestrigatum Schröder 1881

†Paleocyclendoceras zaddachi Schröder 1881

G. †Paravaginoceras Kobayashi 1934

G. †Protocyclendoceras

G. †Suecoceras Holm 1896

†Suecoceras marcoui Ruedemann 1906

G. †Tasmanoceras Teichert and Glenister 1952

†Tasmanoceras zeehanense Teichert and Glenister 1952

G. †Triendoceras Flower 1958

†Triendoceras davisi Frey 1995

†Triendoceras montrealense Flower 1958

†Triendoceras orthoseptatum Flower 1958

G. †Trifurcatoceras Obata 1940

G. †Vaginoceras Hyatt 1884

†Vaginoceras oppletum Ruedemann 1906

G. †Vaningenoceras Flower 1958

†Vaningenoceras indomitum Flower 1958

†Vaningenoceras styliforme Flower 1958

G. †Ventrolobendoceras Balashov 1968

†Ventrolobendoceras grandiense Balashov 1968

G. †Eocameroceras

G. †Hoyoceras

G. †Pronajaceras

Fm. †Proterocameroceratidae Kobayashi 1937

G. †Campendoceras Teichert and Glenister 1954

G. †Clitendoceras Ulrich and Foerste 1936

†Clitendoceras montrealense Ruedemann 1906

†Clitendoceras saylesi Ulrich and Foerste 1936

G. †Cotteroceras Ulrich and Foerste 1936

†Cotteroceras compressum Ulrich and Foerste 1936

G. †Escharendoceras Flower 1956

†Escharendoceras eccentricum Flower 1956

G. †Exoclitendoceras Kröger and Landing 2008

†Exoclitendoceras rochdalense Kröger and Landing 2008

G. †Kirkoceras Ulrich and Foerste 1936

†Kirkoceras arcuatum Ulrich and Foerste 1936

†Kirkoceras bradleyi Ulrich et al. 1943

†Kirkoceras compressum Ulrich et al. 1943

†Kirkoceras gracile Ulrich et al. 1943

†Kirkoceras missisquoi Billings 1865

†Kirkoceras obliquum Ulrich et al. 1943

G. †Kugeloceras

G. †Lobendoceras Teichert and Glenister 1954

†Lobendoceras undulatum Kröger and Evans 2011

G. †Lobosiphon Flower 1956

G. †Manitouoceras Ulrich et al. 1944

G. †Mccluskiceras Kröger and Landing 2008

†Mccluskiceras comstockense Kröger and Landing 2008

G. †Mcqueenoceras Ulrich and Foerste 1936

†Mcqueenoceras jeffersonense Ulrich and Foerste 1936

G. †Meniscoceras Flower 1941

†Meniscoceras coronense Flower 1941

G. †Mysticoceras Ulrich and Foerste 1936

†Mysticoceras marcoui Ruedemann 1906

G. †Oderoceras Ulrich et al. 1943

†Oderoceras depressum Ulrich et al. 1943

†Oderoceras edax Billings 1865

†Oderoceras sevierense Ulrich et al. 1943

†Oderoceras virginianum Ulrich et al. 1943

G. †Palaeocycloceras

†Palaeocycloceras eichwaldi Balashov 1968

G. †Paraendoceras Ulrich and Foerste 1936

†Paraendoceras depressum Kröger and Landing 2008

†Paraendoceras jeffersonense Ulrich and Foerste 1935

†Paraendoceras wappingerense Ulrich et al. 1944

G. †Phragmosiphon Flower 1956

†Phragmosiphon septiferum Flower 1956

G. †Platysiphon Flower 1956

†Platysiphon expansum Flower 1956

G. †Pliendoceras Flower 1956

G. †Proendoceras Flower 1955

G. †Proterocameroceras Ruedemann 1905

†Proterocameroceras baculoides Blake 1882

†Proterocameroceras brainerdi Whitfield 1886

†Proterocameroceras durinum Blake 1882

†Proterocameroceras sibiricum Balashov 1955

G. †Protocyptendoceras Cecioni 1965

†Protocyptendoceras fuenzalidae Cecioni 1965

Invalid names: Protocyptendoceras corvalani Cecioni 1965 [synonym], Protocyptendoceras teicherti Cecioni 1965 [synonym]

†Protocyptendoceras longicameratum Kröger and Lefebvre 2012

G. †Retroclitendoceras Flower 1956

G. †Stenosiphon Flower 1956

†Stenosiphon sandoi Flower 1956

Fm. †Thylacoceratidae Teichert and Glenister 1954

G. †Talassoceras Balashov 1960

G. †Thylacoceras Teichert and Glenister 1952

†Thylacoceras kimberleyense Teichert and Glenister 1952

G. †Trinitoceras

G. †Yehlioceras Shimizu and Obata 1937

Fm. †Yorkoceratidae Flower 1968

G. †Sewardoceras

G. †Telleroceras

G. †Yorkoceras

Invalid names: Baltoceras pusillum Ruedemann 1906 [nomen dubium]

Diagnosis

No diagnoses are available

Measurements

No measurements are available

Composition:

aragoniteo

Environment:

marinec

Locomotion:

actively mobileo

Life habit:

nektobenthico

Diet:

carnivoreo

Vision:

well-developedc

Created:

2005-10-06 14:33:07

Modified:

2008-02-28 11:13:13

Source: o = order, c = class

References: Aberhan et al. 2004, Kiessling 2004

Age range: base of the Tremadoc to the top of the Tournaisian or 486.50000 to 346.70000 Ma

Collections (489 total)

Time interval	Ma	Country or state	Original ID and collection number
Oldest occurrences
Niuchehean	489.5 - 485.4	China (Zhejiang)	Eocameroceras cambria (125704)
Ibexian - Whiterockian	487.5 - 457.3	Thailand (Tarutao Island)	Endoceratidae indet. (189099 189100 189101)
Tremadoc	486.5 - 477.7	Argentina	Protocyptendoceras sp. (9010)
Tremadoc	486.5 - 477.7	China (JiangSu)	Proterocameroceras sp. (7921)
Tremadoc	486.5 - 477.7	China (Guizhou)	Proterocameroceras sp., Talassoceras sp. (4771)
Tremadoc	486.5 - 477.7	China (Hubei)	Cameroceras sp. (7729) Escharendoceras sp., Retroclitendoceras sp. (4736 4738) Proterocameroceras sp. (4728 4729 4735 61727)
Tremadoc	486.5 - 477.7	China (HeBei)	Kailuanoceras sp. (7958)
Tremadoc	486.5 - 477.7	China (Hebei)	Cameroceras styliforme (222590)
Tremadoc	486.5 - 477.7	China (AnHui)	Oderoceras sp. (7832)
Stairsian	485.4 - 478.6	USA (New York)	Clitendoceras saylesi, Exoclitendoceras rochdalense, Mcqueenoceras jeffersonense, Paraendoceras wappingerense, Paraendoceras depressum (89491) Clitendoceras saylesi, Mccluskiceras comstockense (89490) Clitendoceras sp., Proendoceras sp. (289) Cotteroceras sp., Paraendoceras wappingerense (89501 89502) Endoceras wappingerense, Paraendoceras depressum (89492) Orthoceras tityrus, Suecoceras marcoui, Orthoceras missisquoi (42799)
Youngest occurrences
Time interval	Ma	Country or state	PBDB collection number
Pusgillian - Rawtheyan	449.5 - 445.2	Norway (Ringerike)	Cyclendoceras norvegicum (163026)
Ashgill	449.5 - 443.7	USA (Indiana, Ohio)	Endoceras sp. (24171)
Ashgill	449.5 - 443.7	USA (Kentucky)	Endoceras proteiformis (24034)
Pirgu - Porkuni	449.5 - 443.7	Sweden (Dalarne)	Cameroceras turrisoides (73462)
Pirgu - Hirnantian	449.5 - 443.4	Sweden (Dalarne)	Cameroceras regulus (73409)
Cautleyan	449.2 - 448.8	Greenland (Washington Land)	Endoceras proteiforme (24162)
Cautleyan - Hirnantian	449.2 - 443.4	China (GanSu)	Endoceras sp. (8557)
Rawtheyan	448.8 - 445.2	Norway	Cyclendoceras norvegicum (159370)
Silurian	443.8 - 419.2	Malaysia	Endoceras sp. (181688)
Tournaisian	358.9 - 346.7	USA (Iowa)	Ignoceras undata (3339)