PBDB Taxon

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

Hyphantoceras

Cephalopoda - Ammonitida - Nostoceratidae

Taxonomy

Hyphantoceras was named by Hyatt (1900) [Sepkoski's age data: K Turo-u K Camp-l]. Its type is Hamites reussianus.

It was assigned to Bostrychoceratidae by Brunnschweiler (1966); to Nostoceratinae by Summesberger (1979), Wright (1979) and Summesberger (1980); to Baculitidae by Klinger (1985); to Ammonoidea by Sepkoski (2002); and to Nostoceratidae by Wright (1952), Thomel (1988), Kennedy (1995) and Kennedy and Gale (2015).

Species

H. (Hyphantoceras), H. (Madagascarites), H. ceratopse, H. irregulare, H. oshimai (syn. Didymoceras orestimbense), H. plicatum, H. venustum (syn. H. laqueum, Bostrychoceras buttense)

Species lacking formal opinion data

H. orientale

Synonyms

Euhyphantoceras was named by Shimizu (1935).

It was synonymized subjectively with Hyphantoceras by Arkell et al. (1957).

It was assigned to Ammonoidea by Shimizu (1935).

Synonymy list

Year	Name and author
1900	Hyphantoceras Hyatt p. 587
1935	Euhyphantoceras Shimizu
1952	Hyphantoceras Wright
1966	Hyphantoceras Brunnschweiler p. 15
1979	Hyphantoceras Summesberger p. 122
1979	Hyphantoceras Wright p. 297
1980	Hyphantoceras Summesberger p. 277
1985	Hyphantoceras Klinger p. 6
1988	Hyphantoceras Thomel p. 21
1995	Hyphantoceras Kennedy p. 427
2002	Hyphantoceras Sepkoski
2015	Hyphantoceras Kennedy and Gale p. 518

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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
suborder	Ancyloceratina	Wiedmann 1966
superfamily	Turrilitoidea	(Gill 1871)
family	Nostoceratidae	Hyatt 1894
genus	Hyphantoceras

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.

G. †Hyphantoceras Hyatt 1900

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Subg. †Hyphantoceras (Hyphantoceras) Hyatt 1900

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†Hyphantoceras (Hyphantoceras) reussianum d'Orbigny 1850

Invalid names: Helicoceras annulifer Roemer 1870 [synonym]

Subg. †Hyphantoceras (Madagascarites) Collignon 1966

†Hyphantoceras ceratopse Anderson 1902

†Hyphantoceras irregulare Anderson 1958

†Hyphantoceras oshimai Yabe 1904

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Invalid names: Didymoceras orestimbense Anderson 1958 [synonym]

†Hyphantoceras plicatum d'Orbigny 1842

†Hyphantoceras venustum Yabe 1904

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Invalid names: Bostrychoceras buttense Anderson 1958 [synonym], Hyphantoceras laqueum Anderson 1958 [synonym]

Invalid names: Euhyphantoceras Shimizu 1935 [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 Cenomanian to the top of the Maastrichtian or 100.50000 to 66.00000 Ma

Collections (49 total)

Time interval	Ma	Country or state	Original ID and collection number
Cenomanian	100.5 - 93.9	USA (California)	H. sp. (185726)
Turonian	93.9 - 89.8	USA (Oregon)	H. ceratopse (86814) H. irregulare (158110)
Turonian	93.9 - 89.8	USA (California)	H. ceratopse (44213)
Turonian	93.9 - 89.8	Japan	Madagascarites ryu (69160 69165)
Turonian	93.9 - 89.8	Japan (Hokkaido)	Madagascarites sp. (94688)
Turonian - Santonian	93.9 - 83.6	USA (California)	H. sp. (185463)
Early/Lower Turonian	93.5 - 89.3	Canada (British Columbia)	H. sp. (210493)
Late/Upper Turonian	93.5 - 89.3	Germany (Sachsen)	H. reussianum (172074 172075)
Late/Upper Turonian	93.5 - 89.3	Russian Federation	H. reussianum (84214)
Late/Upper Turonian	93.5 - 89.3	Germany	H. reussianum (12684 12685 12686 74196 154797)
Late/Upper Turonian	93.5 - 89.3	United Kingdom (England)	H. reussianum (175764 175765 175771 175776 175777) H. sp. nov. (175792)
Late/Upper Turonian	93.5 - 89.3	France	H. reussianum (175633)
Late/Upper Turonian	93.5 - 89.3	USA (Oregon)	H. irregulare (86813)
Middle Turonian	93.5 - 89.3	USA (California)	H. sp. (86782)
Middle Turonian	93.5 - 89.3	Japan	H. sp. (69157) Madagascarites ryu (69162)
Late/Upper Turonian - Coniacian	93.5 - 86.3	USA (California)	H. sp. (224975)
Coniacian	89.8 - 86.3	Antarctica	H. reussianum (83563)
Coniacian	89.8 - 86.3	France	Turrilites plicatus (179792)
Coniacian	89.8 - 86.3	USA (California)	H. sp. (185416) H. venustum (225627)
Coniacian	89.8 - 86.3	Russian Federation (Sakhalin)	H. venustum (64574)
Coniacian - Santonian	89.8 - 83.6	USA (California)	Didymoceras orestimbense (185441)
Late/Upper Coniacian - Early/Lower Santonian	89.3 - 83.5	USA (California)	H. laqueum (224980)
Santonian	86.3 - 83.6	USA (California)	Bostrychoceras buttense (215637) H. sp. (86935) H. venustum (86780)
Santonian	86.3 - 83.6	Japan	H. orientale (62211 62216 62335) H. oshimai (62217)
Early/Lower Santonian - Late/Upper Santonian	85.8 - 83.5	France	H. sp. (69872)
Late/Upper Santonian	85.8 - 83.5	USA (California)	H. venustum (224942)
Middle Santonian	85.8 - 83.5	France	H. plicatum (179634)
Campanian	83.6 - 72.1	Japan	H. orientale (62233)
Campanian - Maastrichtian	83.6 - 66.0	Australia (Western Australia)	H. sp. (190310)
Maastrichtian	72.1 - 66.0	Russian Federation (Sakhalin)	Euhyphantoceras maastrichtiense (64608)