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Sphenoceramus

Bivalvia - Myalinida - Inoceramidae

Synonymy list
YearName and author
1915Sphenoceramus Böhm
1973Inoceramus (Sphenoceramus) Kennedy et al. p. 96
1980Sphenoceramus Vokes p. 40
1986Inoceramus (Sphenoceramus) Scott et al. p. 22
1992Sphenoceramus Elder and Box p. 33
2002Sphenoceramus Sepkoski
2010Sphenoceramus Bouchet et al.

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
—Eubivalvia
RankNameAuthor
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
—OstreomorphiFerussac 1822
—OstreioniFerussac 1822
—MyalinataPaul 1939
orderMyalinidaPaul 1939
superfamilyInoceramoideaGiebel 1852
familyInoceramidae
genusSphenoceramusBöhm 1915

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. †Sphenoceramus Böhm 1915
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†Inoceramus (Sphenoceramus) pachti Archanguelsky 1916
†Sphenoceramus elegans Sokolow 1914
†Sphenoceramus gilli Walaszczyk and Cobban 2006
†Sphenoceramus naumanni Yokoyama 1890
†Sphenoceramus orientalis Sokolov 1914
Diagnosis
ReferenceDiagnosis
W. P. Elder and S. E. Box 1992Commonly large, elongate, equivalve, and Inoceramus-like with trigonal sphenoid outline obliquely elongate to growth axis. Umbo very narrow and sharply rounded. Hinge short; posterior wing small, clearly separated from disk by deep sharp sulcus. Ornamentation of concentric rugae usually superimposed on radial or divergent plicae. Ornamentation weakens or disappears on posterior auricle.
Measurements
No measurements are available
Composition: low Mg calciteg
Composition 2: aragoniteg
Locomotion: facultatively mobilesubc
Life habit: epifaunalsubc
Diet: suspension feedersubc
Vision: blindc
Created: 2007-11-26 04:03:03
Modified: 2007-11-26 06:03:03
Source: g = genus, subc = subclass, c = class
References: Aberhan et al. 2004, Eaton 1871

Age range: base of the Late/Upper Turonian to the top of the Early/Lower Campanian or 93.90000 to 72.20000 Ma

Collections (99 total)


Time interval Ma Country or state Original ID and collection number
Early/Lower Turonian93.9 - 89.8India (Tamil Nadu) S. diversus (46391)
Early/Lower Turonian - Middle Turonian93.9 - 89.8Brazil S. spp. (140889)
Late/Upper Turonian93.9 - 89.8USA (New Mexico) Inoceramus lundbrekensis (82259)
Coniacian89.8 - 85.7India (Tamil Nadu) Inoceramus naumanni (46442)
Coniacian89.8 - 85.7Japan (Kumamoto) Inoceramus naumanni (38621)
Coniacian89.8 - 85.7Denmark Inoceramus guerichi (70001)
Late/Upper Coniacian89.8 - 85.7USA (Montana) S. latisulcatus, S. canaliculatus (100150) S. sp. A (100166)
Coniacian - Santonian89.8 - 83.6Japan S. naumanni (87022)
Coniacian - Santonian89.8 - 83.6Japan (Hokkaido) S. naumanii (193939)
Coniacian - Santonian89.8 - 83.6Japan (Oita) Inoceramus yokoyamai, Inoceramus naumanni (40323)
Coniacian - Santonian89.8 - 83.6USA (California) Inoceramus orientalis (224937)
Late/Upper Coniacian - Early/Lower Santonian89.8 - 83.6Denmark Inoceramus bornholmensis, Inoceramus pachti (70062)
Early/Lower Santonian85.7 - 83.6Greenland Inoceramus steenstrupi (70202)
Early/Lower Santonian85.7 - 83.6USA (California) Inoceramus naumanni (69307)
Early/Lower Santonian85.7 - 83.6Denmark Inoceramus cardissoides (70063) Inoceramus cardissoides, Inoceramus pachti (70059) Inoceramus pachti (70060) Inoceramus subcardissoides, Inoceramus cardissoides, Inoceramus bornholmensis, Inoceramus pachti (70061)
Early/Lower Santonian85.7 - 83.6Japan Inoceramus naumanni (4876)
Early/Lower Santonian85.7 - 83.6Poland Inoceramus pachti (179488)
Early/Lower Santonian85.7 - 83.6South Africa (KwaZulu-Natal) S. sp. (38158)
Late/Upper Santonian85.7 - 83.6Germany Inoceramus patootensiformis (36816)
Late/Upper Santonian85.7 - 83.6USA (Colorado) S. sp. (74331)
Late/Upper Santonian85.7 - 83.6Canada (British Columbia) S. elegans (134730 210547 210557) S. orientalis (210559) S. orientalis, S. elegans (210549 210552 210553) S. orientalis, S. elegans, S. sachalinensis (210544 210554)
Late/Upper Santonian85.7 - 83.6USA (California) Inoceramus orientalis (224938 224939)
Late/Upper Santonian85.7 - 83.6USA (Montana) S. cancellatus, S. lingua (100159) S. cardissoides (100153) S. gilli (100168) S. lundbreckensis (100165)
Late/Upper Santonian85.7 - 83.6Japan S. naumanni (115299)
Late/Upper Santonian85.7 - 83.6USA (Wyoming) S. lundbreckensis (100155)
Middle Santonian85.7 - 83.6USA (Montana) S. cardissoides (100160)
Middle Santonian85.7 - 83.6USA (New Mexico) Inoceramus lundbreckensis (87849)
Santonian85.7 - 83.6USA (New Mexico) Inoceramus lundbreckensis (87850)
Santonian85.7 - 83.6Japan (Kumamoto) Inoceramus orientalis, Inoceramus naumanni (39567)
Santonian85.7 - 83.6Greenland Inoceramus steenstrupi (70209)
Santonian85.7 - 83.6Japan Inoceramus naumanni (65025) S. naumanni (62209 62210 62211 62212 62214 62215 62216 62217 62330 62332 62333 62334 62335 62467) S. yokoyamai, S. naumanni (62331 62930)
Santonian85.7 - 83.6USA (California) Inoceramus naumanni (86934 225690)
Santonian85.7 - 83.6Japan (Hokkaido) Inoceramus naumanni (94689)
Late/Upper Santonian - Early/Lower Campanian85.7 - 72.2Japan (Hokkaido) S. naumanni (97297)
Late/Upper Santonian - Early/Lower Campanian85.7 - 72.2USA (California) Inoceramus naumanni (225736)
Late/Upper Santonian - Early/Lower Campanian85.7 - 72.2Russian Federation S. orientalis (237005 237006 237007 237019 237020)
Santonian - Early/Lower Campanian85.7 - 72.2Argentina S. sp. (90737)
Campanian83.6 - 72.2USA (Alaska) Inoceramus elegans (88822) Inoceramus naumanni (44071)
Campanian83.6 - 72.2South Africa Inoceramus pachti (82728 82729)
Campanian83.6 - 72.2Canada (Alberta) Inoceramus lundbreckensis (87516)
Campanian83.6 - 72.2Japan S. naumanni (62232 62233 62236 62237 62238)
Campanian83.6 - 72.2Japan (Kumamoto) Inoceramus orientalis (39565)
Early/Lower Campanian83.6 - 72.2Japan S. nagaoi (174599) S. naumanni (212860 236007) S. orientalis, S. elegans (87035) S. schmidti (87036 87037)
Early/Lower Campanian83.6 - 72.2Canada (British Columbia) S. sp. (235401)
Early/Lower Campanian83.6 - 72.2Japan (Hokkaido) Inoceramus orientalis (94679) S. sp. (87521)
Early/Lower Campanian83.6 - 72.2USA (Montana) S. lingua (100163)
Early/Lower Campanian83.6 - 72.2Germany Inoceramus nasutus (36812)
Late/Upper Campanian83.6 - 72.2USA (Alaska) Inoceramus elegans (158291)
Middle Campanian83.6 - 72.2Japan S. orientalis (226936 226937)