PBDB Taxon

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

Diplomoceratidae

Cephalopoda - Ammonitida - Diplomoceratidae

Taxonomy

Diplomoceratidae was named by Spath (1926). Its type is Diplomoceras.

It was assigned to Hamitaceae by Wright (1952); to Diplomocerataceae by Brunnschweiler (1966); to Ammonoidea by Thomel (1988); to Turrilitaceae by Henderson (1970), Kennedy and Christensen (1991), Cobban and Kennedy (1992), Kennedy et al. (1992), Henderson et al. (1992), Ward and Kennedy (1993), Kennedy (1993), Kennedy and Christennsen (1993), Kennedy (1995), Kennedy (1995), Kennedy et al. (1997), Kennedy et al. (1997), Kennedy and Summesberger (1999), Kennedy (2000), Kennedy et al. (2000), Szives (2007); and to Turrilitoidea by Kennedy et al. (2007), Ifrim et al. (2015), Dochev and Metodiev (2016), Kurihara et al. (2016), Niebuhr et al. (2016), Gane et al. (2016), Shigeta and Izukura (2018), Kennedy (2018).

Subtaxa

Astreptoceras, Diplomoceratinae, Eudiplomoceras, Masonites, Polyptychoceratinae, Ryugasella, Schlueterella (syn. Christophoceras)

Synonymy list

Year	Name and author
1926	Diplomoceratidae Spath
1952	Diplomoceratidae Wright
1966	Diplomoceratidae Brunnschweiler p. 18
1970	Diplomoceratidae Henderson p. 25
1988	Diplomoceratidae Thomel p. 21
1991	Diplomoceratidae Kennedy and Christensen p. 216
1992	Diplomoceratidae Cobban and Kennedy p. 80
1992	Diplomoceratidae Henderson et al. p. 138
1992	Diplomoceratidae Kennedy et al. p. 274
1993	Diplomoceratidae Kennedy p. 106
1993	Diplomoceratidae Kennedy and Christennsen p. 152
1993	Diplomoceratidae Ward and Kennedy p. 49
1995	Diplomoceratidae Kennedy p. 247
1997	Diplomoceratidae Kennedy et al. p. 8
1999	Diplomoceratidae Kennedy and Summesberger p. 27
2000	Diplomoceratidae Kennedy p. 469
2000	Diplomoceratidae Kennedy et al. p. 14
2007	Diplomoceratidae Kennedy et al. p. 526
2007	Diplomoceratidae Szives p. 130
2015	Diplomoceratidae Ifrim et al. p. 237
2016	Diplomoceratidae Dochev and Metodiev p. 36
2016	Diplomoceratidae Gane et al. p. 11
2016	Diplomoceratidae Kurihara et al. p. 117
2016	Diplomoceratidae Niebuhr et al. p. 213
2018	Diplomoceratidae Kennedy p. 679
2018	Diplomoceratidae Shigeta and Izukura p. 22

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

Rank	Name	Author
class	Cephalopoda	Cuvier 1797
subclass	Ammonoidea	()
order	Ammonitida	Haeckel 1866
suborder	Ancyloceratina	Wiedmann 1966
superfamily	Turrilitoidea	(Gill 1871)
family	Diplomoceratidae	Spath 1926
family	Diplomoceratidae	Spath 1926

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.

Fm. †Diplomoceratidae Spath 1926

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G. †Astreptoceras Henderson 1970

†Astreptoceras zelandicum Marshall 1926

Subfm. †Diplomoceratinae Spath 1926

G. †Chesapeakiceras Kennedy and Cobban 1998

†Chesapeakiceras nodatum Kennedy and Cobban 1993

Invalid names: Chesapeakella Kennedy and Cobban 1993 [replaced]

G. †Diplomoceras Hyatt 1900

†Diplomoceras cascadense Anderson 1958

†Diplomoceras cylindraceum Defrance 1816

Invalid names: Diplomoceras australe Hünicken 1965 [synonym], Diplomoceras lambi Spath 1953 [synonym], Diplomoceras maximum Olivero and Zinsmeister 1989 [synonym], Diplomoceras notabile Whiteaves 1903 [synonym]

†Diplomoceras ellipticum Anderson 1902

†Diplomoceras jimboi Anderson 1958

†Diplomoceras mustangense Anderson 1958

†Diplomoceras oshaughnessyi Anderson 1958

†Diplomoceras phoenixense Anderson 1902

†Diplomoceras vermiculare Anderson 1958

G. †Glyptoxoceras Spath 1925

†Glyptoxoceras aquisgranense Schlüter 1872

†Glyptoxoceras brasiliense Maury 1930

†Glyptoxoceras circulare Shimizu 1935

†Glyptoxoceras crispatum Moberg 1885

†Glyptoxoceras ellisoni Young 1963

†Glyptoxoceras indicum Forbes 1846

†Glyptoxoceras largesulcatum Forbes 1846

Invalid names: Diplomoceras mercedense Anderson 1958 [synonym]

†Glyptoxoceras nipponicum Shimizu 1935

†Glyptoxoceras novimexicanum Reeside 1927

†Glyptoxoceras parahybense Maury 1930

†Glyptoxoceras retrorsum Schlüter 1872

†Glyptoxoceras rugatum Forbes 1846

Invalid names: Glyptoxoceras bullarense Brunnschweiler 1966 [synonym], Hamites nereis Forbes 1846 [synonym], Hamites recticostatus Seunes 1890 [synonym], Neohamites cardabiensis Brunnschweiler 1966 [synonym], Neohamites giraliensis Brunnschweiler 1966 [synonym], Neohamites sofoulisi Brunnschweiler 1966 [synonym]

†Glyptoxoceras souqueti Collignon 1983

†Glyptoxoceras subcompressum Forbes 1846

†Glyptoxoceras tenuisulcatum Forbes 1846

†Glyptoxoceras texanum Kennedy et al. 2001

†Glyptoxoceras wakanenei Marshall 1926

Invalid names: Neohamites Brunnschweiler 1966 [synonym]

G. †Lewyites

†Lewyites ambindense Collignon 1971

†Lewyites circularis Lewy 1969

†Lewyites elegans Moberg 1885

Invalid names: Hamites phaleratus Griepenkerl 1889 [synonym]

†Lewyites oronensis Lewy 1969

G. †Neancyloceras Spath 1926

†Neancyloceras bipunctatum Schlüter 1872

G. †Neocrioceras

Subg. †Neocrioceras (Neocrioceras) Spath 1921

G. †Neoglyptoxoceras Collignon 1969

Invalid names: Epiglyptoxoceras [synonym]

G. †Scalarites Wright and Matsumoto 1954

†Scalarites cingulatum Schluter 1872

†Scalarites mihoensis Wright and Matsumoto 1954

G. †Eudiplomoceras Brunnschweiler 1966

G. †Masonites Henderson 1970

†Masonites biannulatus Henderson 1970

†Masonites spriggi Glaessner and Wade 1966

Subfm. †Polyptychoceratinae Matsumoto 1938

G. †Oxybeloceras Hyatt 1900

†Oxybeloceras biconstrictum Anderson 1958

†Oxybeloceras mortoni Meek and Hayden 1876

†Solenoceras (Oxybeloceras) humei Douville 1928

G. †Phylloptychoceras Spath 1953

†Phylloptychoceras sipho Forbes 1846

G. †Polyptychoceras Yabe 1927

Subg. †Polyptychoceras (Polyptychoceras) Yabe 1927

†Polyptychoceras (Polyptychoceras) obliquecostatum Schluter 1872

Invalid names: Hamites berkelis Schluter 1876 [synonym]

†Polyptychoceras (Polyptychoceras) obstrictum Jimbo 1894

Subg. †Polyptychoceras (Subptychoceras) Shimizu 1935

†Polyptychoceras pseudogaultinum Yokoyama 1890

G. †Pseudoxybeloceras Wright and Matsumoto 1954

Subg. †Pseudoxybeloceras (Parasolenoceras) Collignon 1969

†Parasolenoceras tomitai Matsumoto 1984

†Pseudoxybeloceras (Parasolenoceras) interruptum Schlüter 1872

†Pseudoxybeloceras (Parasolenoceras) splendens Collignon 1969

Subg. †Pseudoxybeloceras (Pseudoxybeloceras) Wright and Matsumoto 1938

†Pseudoxybeloceras (Pseudoxybeloceras) quadrispinosus Jimbo 1894

†Pseudoxybeloceras bicostatum Henderson 1970

†Pseudoxybeloceras compressum Henderson 1970

†Pseudoxybeloceras lineatum Gabb 1869

Invalid names: Oxybeloceras taffi Anderson 1958 [synonym]

†Pseudoxybeloceras petrolense Anderson 1958

G. †Solenoceras Conrad 1860

Subg. †Solenoceras (Solenoceras) Conrad 1860

†Solenoceras annulifer Morton 1824

†Solenoceras bearpawense Kennedy et al. 2000

†Solenoceras bembense Haas 1943

†Solenoceras crassum Whitfield 1877

†Solenoceras elegans Kennedy et al. 2000

†Solenoceras larimerense Kennedy et al. 2000

†Solenoceras reesidei Stephenson 1941

Invalid names: Solenoceras mexicanum Anderson 1958 [synonym]

†Solenoceras solanoense Anderson 1902

†Solenoceras texanum Shumard 1861

G. †Spiroxybeloceras Kennedy and Cobban 1999

†Spiroxybeloceras meekanum Whitfield 1877

G. †Ryugasella

†Ryugasella ryugasensis Wright and Matsumoto 1954

G. †Schlueterella Wiedmann 1962

†Neocrioceras (Schlueterella) compressum Klinger 1976

†Neocrioceras (Schlueterella) maderi Immel et al. 1982

†Neocrioceras (Schlueterella) multinodosum Schluter 1872

†Pseudoxybeloceras (Schlueterella) pseudoarmatum Schluter 1872

†Schlueterella kawadai Matsumoto and Miyauchi 1984

Invalid names: Christophoceras [synonym]

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 2004, Kiessling 2003

Age range: base of the Late/Upper Albian to the top of the Maastrichtian or 106.30000 to 66.00000 Ma

Collections (477 total)

Time interval	Ma	Country or state	Original ID and collection number
Oldest occurrences
Late/Upper Albian	106.3 - 100.5	Madagascar (Antsiranana)	Hamites largesulcatus (98215)
Late/Upper Cenomanian	100.5 - 93.9	USA (Utah)	Neocrioceras sp. (3690)
Cenomanian - Turonian	100.5 - 89.8	Japan (Hokkaido)	Polyptychoceras haradanum, Polyptychoceras sp. (94681)
Late/Upper Cretaceous	100.5 - 66.0	USA (California)	Scalarites sp. (185503)
Senonian	100.5 - 66.0	USA (California)	Diplomoceras sp. (224979)
Early/Lower Turonian	93.9 - 89.8	Colombia	Glyptoxoceras sp. (46997 46998)
Early/Lower Turonian	93.9 - 89.8	Venezuela (Trujillo)	Glyptoxoceras indicum (88036)
Early/Lower Turonian - Middle Turonian	93.9 - 89.8	Brazil	Scalarites sp. (140889)
Late/Upper Turonian	93.9 - 89.8	United Kingdom (England)	Neocrioceras multinodosum (175764 175775)
Late/Upper Turonian	93.9 - 89.8	Russian Federation	Scalarites mihoensis (84214 84215)
Youngest occurrences
Time interval	Ma	Country or state	PBDB collection number
Maastrichtian	72.2 - 66.0	USA (Texas)	Diplomoceras sp. (4543) Solenoceras reesidei (7480 7493 7567) Solenoceras texanum, Solenoceras reesidei (7570)
Maastrichtian	72.2 - 66.0	Denmark	Diplomoceras cylindraceum (67402 67405 67407 67409 67410 67415 67416 67417 67418 67419) Glyptoxoceras tenuisulcatum (67404)
Maastrichtian	72.2 - 66.0	Antarctica	Diplomoceras lambi (82937 82941 82942 82943 82944 82945 82946 82947 82948 82949 82950 82952 82953 82954 82955)
Maastrichtian	72.2 - 66.0	Greenland	Diplomoceras sp. (70228)
Maastrichtian	72.2 - 66.0	Armenia	Diplomoceras cylindraceum (183328)
Maastrichtian	72.2 - 66.0	Antarctica (Seymour Island)	Diplomoceras sp. (63513)
Maastrichtian	72.2 - 66.0	USA (New Jersey)	Lewyites oronensis (83064)
Maastrichtian	72.2 - 66.0	Russian Federation (Sakhalin)	Oxybeloceras jimboi, Diplomoceras obstrictum (64608)
Maastrichtian	72.2 - 66.0	Belgium	Solenoceras sp. (82891)
Maastrichtian	72.2 - 66.0	USA (California)	Diplomoceras jimboi, Diplomoceras mercedense (83778) Diplomoceras mustangense (185758) Diplomoceras sp. (225709 225934) Glyptoxoceras sp. (185455 185759) Hamites ellipticus (83785) Solenoceras sp. (83786 83788)