PBDB Taxon

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

Eubostrychoceras

Cephalopoda - Ammonitida - Nostoceratidae

Taxonomy

Eubostrychoceras was named by Matsumoto (1967) [Sepkoski's age data: K Turo-u K Camp]. Its type is Eubostrychoceras indopacificum.

It was reranked as Nostoceras (Eubostrychoceras) by Kennedy (1984), Kennedy and Christensen (1991), Wilmsen and Nagm (2014); it was reranked as Didymoceras (Eubostrychoceras) by Haggart et al. (2005).

It was assigned to Ammonoidea by Sepkoski (2002); to Didymoceras by Haggart et al. (2005); to Nostoceras by Kennedy (1984), Kennedy and Christensen (1991), Wilmsen and Nagm (2014); and to Nostoceratidae by Cobban (1987), Kennedy (1995), Kennedy et al. (2000), Kennedy et al. (2007), Aiba et al. (2017).

Species

Didymoceras (Eubostrychoceras) japonicum, E. (Eubostrychoceras), E. acuticostatum, E. indopacificum (type species), E. matsumotoi, E. valdelaxum, Nostoceras (Eubostrychoceras) saxonicum (syn. Heteroceras woodsi)

Species lacking formal opinion data

E. elongatum, E. medinai, E. reevesi, E. zinsmeisteri

Synonymy list

Year	Name and author
1967	Eubostrychoceras Matsumoto
1984	Nostoceras (Eubostrychoceras) Kennedy p. 140
1987	Eubostrychoceras Cobban p. A2
1991	Nostoceras (Eubostrychoceras) Kennedy and Christensen p. 216
1995	Eubostrychoceras Kennedy p. 428
2000	Eubostrychoceras Kennedy et al. p. 6
2002	Eubostrychoceras Sepkoski
2005	Didymoceras (Eubostrychoceras) Haggart et al.
2007	Eubostrychoceras Kennedy et al. p. 525
2014	Nostoceras (Eubostrychoceras) Wilmsen and Nagm p. 231
2017	Eubostrychoceras Aiba et al. p. 257

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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	Nostoceratidae	Hyatt 1894
genus	Eubostrychoceras	Matsumoto 1967

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. †Eubostrychoceras Matsumoto 1967

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†Didymoceras (Eubostrychoceras) japonicum Yabe 1904

Subg. †Eubostrychoceras (Eubostrychoceras) Matsumoto 1967

†Eubostrychoceras acuticostatum d'Orbigny 1842

†Eubostrychoceras indopacificum Matsumoto 1967

†Eubostrychoceras matsumotoi Cobban 1987

†Eubostrychoceras valdelaxum Aiba et al. 2017

†Nostoceras (Eubostrychoceras) saxonicum Schluter 1875

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Invalid names: Heteroceras woodsi Kitchin 1922 [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 Early/Lower Turonian to the top of the Middle Campanian or 93.90000 to 72.20000 Ma

Collections (62 total)

Time interval	Ma	Country or state	Original ID and collection number
Early/Lower Turonian	93.9 - 89.8	Canada (British Columbia)	Didymoceras japonicum (210526)
Early/Lower Turonian	93.9 - 89.8	Spain	Nostoceras sp. (187005)
Late/Upper Turonian	93.9 - 89.8	United Kingdom (England)	Didymoceras saxonicum (112693 159132 159656 175764 175765 175771) Hyphantoceras woodsi (175792)
Late/Upper Turonian	93.9 - 89.8	Germany	Didymoceras saxonicum (12684 12685 12686) E. saxonicum (276362) Nostoceras saxonicum (74196 154797)
Late/Upper Turonian	93.9 - 89.8	USA (Wyoming)	E. matsumotoi (175705 175706 175708 175709 175713 175714)
Late/Upper Turonian	93.9 - 89.8	USA (South Dakota)	E. matsumotoi (175707)
Late/Upper Turonian	93.9 - 89.8	USA (New Mexico)	E. matsumotoi (88425 88427 175710)
Middle Turonian	93.9 - 89.8	Japan	E. japonicum (212917) E. sp. (69157 69169 69172)
Middle Turonian	93.9 - 89.8	USA (Alaska)	E. japonicum (51920)
Middle Turonian	93.9 - 89.8	Russian Federation	E. japonicum (84216)
Middle Turonian - Late/Upper Turonian	93.9 - 89.8	Japan	E. sp. (277045)
Middle Turonian - Late/Upper Turonian	93.9 - 89.8	USA (Wyoming)	E. matsumotoi (88421 175711 175712)
Turonian	93.9 - 89.8	Japan	E. sp. (65022 69167 69170 69171 69174)
Turonian	93.9 - 89.8	United Kingdom (England)	Didymoceras saxonicum (38601)
Early/Lower Coniacian	89.8 - 85.7	France	E. saxonicum (179215)
Early/Lower Coniacian	89.8 - 85.7	Japan	E. saxonicum (181021)
Late/Upper Coniacian - Early/Lower Santonian	89.8 - 83.6	Denmark	Nostoceras saxonicum (70062)
Late/Upper Coniacian - Santonian	89.8 - 83.6	Spain	E. sp. (66969)
Late/Upper Santonian	85.7 - 83.6	Canada (British Columbia)	E. elongatum (210548)
Middle Santonian	85.7 - 83.6	France	E. acuticostatum (179259) Turrilites acuticostatus (179797)
Santonian	85.7 - 83.6	Antarctica	E. elongatum (83371 83372) E. medinai (83338) E. sp. (83334 83336)
Early/Lower Campanian	83.6 - 72.2	Japan	E. valdelaxum (186849 186850 236007)
Early/Lower Campanian	83.6 - 72.2	Canada (British Columbia)	E. sp. (202482)
Early/Lower Campanian	83.6 - 72.2	USA (Texas)	E. sp. (221086)
Early/Lower Campanian	83.6 - 72.2	Antarctica	E. medinai, E. zinsmeisteri (83376 83377)
Middle Campanian	83.6 - 72.2	USA (Texas)	E. reevesi (3608 3632)