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Sphenodiscidae
Taxonomy
Sphenodiscidae was named by Hyatt (1900). It is not extant.
It was assigned to Ammonoidea by Zaborski (1985); to Acanthocerataceae by Wright (1952), Kennedy (1995), Kennedy (1995), Kennedy and Cobban (1996), Kennedy et al. (1996), Kennedy et al. (1997), Kennedy (1999), Landman and Cobban (2003), Ahmad et al. (2015); and to Acanthoceratoidea by Kennedy and Klinger (2012), Jagt et al. (2019).
It was assigned to Ammonoidea by Zaborski (1985); to Acanthocerataceae by Wright (1952), Kennedy (1995), Kennedy (1995), Kennedy and Cobban (1996), Kennedy et al. (1996), Kennedy et al. (1997), Kennedy (1999), Landman and Cobban (2003), Ahmad et al. (2015); and to Acanthoceratoidea by Kennedy and Klinger (2012), Jagt et al. (2019).
Synonyms
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Synonymy list
Year | Name and author |
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1900 | Sphenodiscidae Hyatt p. 585 |
1952 | Sphenodiscidae Wright |
1982 | Libycoceratidae Zaborski p. 307 |
1985 | Sphenodiscidae Zaborski p. 57 |
1995 | Sphenodiscidae Kennedy p. 247 |
1996 | Sphenodiscidae Kennedy and Cobban p. 801 |
1996 | Sphenodiscidae Kennedy et al. p. 6 |
1997 | Sphenodiscidae Kennedy et al. p. 4 |
1999 | Sphenodiscidae Kennedy p. 653 |
2003 | Sphenodiscidae Landman and Cobban p. 13 |
2012 | Sphenodiscidae Kennedy and Klinger p. 31 |
2015 | Sphenodiscidae Ahmad et al. p. 247 |
2019 | Sphenodiscidae Jagt et al. p. 591 |
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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. †Sphenodiscidae Hyatt 1900
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G. †Coahuilites Böse 1928
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†Coahuilites cavinsi Böse 1928
†Coahuilites orynskii Böse 1928
†Coahuilites sheltoni Böse 1928
Subfm. †Lenticeratinae Hyatt 1900
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G. †Eulophoceras Hyatt 1903
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†Eulophoceras austriacum Summesberger 1979
†Eulophoceras bererense Hourcq 1949
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Invalid names: Eulophoceras besairiei Hourcq 1949 [synonym], Eulophoceras manambolense Hourcq 1949 [synonym], Eulophoceras miloni Hourcq 1949 [synonym]
†Eulophoceras natalense Hyatt 1903
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Invalid names: Pelecodiscus amapondensis Van Hoepen 1921 [synonym], Pelecodiscus capensis Van Hoepen 1921 [synonym], Pelecodiscus umzambiensis Van Hoepen 1921 [synonym], Spheniscoceras africanum Spath 1921 [synonym], Spheniscoceras minor Spath 1921 [synonym], Spheniscoceras tenue Spath 1921 [synonym]
Invalid names: Eulophoceras grossouvrei Collignon 1983 [nomen dubium], Pelecodiscus Van Hoepen 1921 [synonym], Praelibycoceras Douvillé 1912 [synonym], Skoumalia Summesberger 1979 [synonym], Spheniscoceras Spath 1921 [synonym]
G. †Paralenticeras Hyatt 1900
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†Paralenticeras caneroti Collignon 1983
†Paralenticeras leonhardianum Karsten 1856
†Paralenticeras sieversi Gerhardt 1897
G. †Libycoceras Hyatt 1900
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†Libycoceras acutodorsatus Noetling 1897
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Invalid names: Libycoceras chargense Blanckenhorn 1900 [synonym]
†Libycoceras afikpoense Reyment 1955
†Libycoceras crossense Zaborski 1982
†Libycoceras dandense Howarth 1965
†Libycoceras ismaelis Zittel 1884
G. †Sphenodiscus Meek 1871
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†Sphenodiscus aberrans Böse 1928
†Sphenodiscus beecheri Hyatt 1903
†Sphenodiscus binkhorsti Böhm 1898
†Sphenodiscus brasiliensis Maury 1930
†Sphenodiscus corroyi Sornay and Tessier 1949
†Sphenodiscus intermedius Böse 1928
†Sphenodiscus konincki Hyatt 1903
†Sphenodiscus lobatus Tuomey 1856
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†Sphenodiscus lenticularis mississippiensis Hyatt 1903
Invalid names: Ammonites lenticularis Owen 1852 [replaced]
†Sphenodiscus parahybensis Maury 1930
†Sphenodiscus pleurisepta Conrad 1857
†Sphenodiscus prepleurisepta Böse 1928
†Sphenodiscus siva Forbes 1846
†Sphenodiscus stantoni Hyatt 1903
†Sphenodiscus ubaghsi de Groussouvre 1894
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Invalid names: Sphenodiscus rutoti de Grossouvre 1894 [synonym]
Invalid names: Libycoceratidae Zaborski 1982 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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Source: o = order, c = class | |||||
References: Kiessling 2003, Kiessling 2004 |
Age range: base of the Turonian to the top of the Early/Lower Maastrichtian or 93.90000 to 66.00000 Ma
Collections (276 total)
Time interval | Ma | Country or state | Original ID and collection number |
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Late/Upper Turonian | Brazil | Paralenticeras sp., Paralenticeras leonhardium (140890) | |
Turonian - Coniacian | Peru | Eulophoceras berryi, Lenticeras lissoni (88671) Lenticeras gerhardti, Lenticeras andii, Paralenticeras sierverei, Lenticeras baltae (88672) | |
Coniacian | Nigeria | Eulophoceras sp. (82737) | |
Coniacian | Haiti | Paralenticeras sieversi (87735) | |
Early/Lower Coniacian | Venezuela (Lara) | Paralenticeras leonhardianum (88354) | |
Early/Lower Coniacian | Venezuela (Táchira) | Lenticeras andii (88355) | |
Early/Lower Coniacian | Venezuela (Trujillo) | Eulophoceras natalense (88269) Paralenticeras sieversi (88268) | |
Early/Lower Santonian | France | Eulophoceras natalense (179758) | |
Late/Upper Santonian | France | Eulophoceras austriacum (178859 179223 179760) Eulophoceras sp., Eulophoceras austriacum, Paralenticeras caneroti, Eulophoceras grossouvrei (179639) | |
Late/Upper Santonian | Austria | Skoumalia austriaca (178860) | |
Late/Upper Santonian | South Africa | Eulophoceras natalense (177260) | |
Santonian | France | Eulophoceras natalense (179759) | |
Santonian | Cuba | Paralenticeras stevensi (100121) | |
Santonian | Peru (Cajamarca) | Lenticeras baltai (88154) | |
Late/Upper Santonian - Early/Lower Campanian | South Africa | Eulophoceras natalense (177264) Pelecodiscus umzambiensis, Pelecodiscus capensis, Pelecodiscus amapondensis (177263) Spheniscoceras africanum, Spheniscoceras minor, Spheniscoceras tenue, Spheniscoceras amapondense (177262) | |
Early/Lower Campanian | South Africa | Eulophoceras natalense (177259) Eulophoceras natalense, Eulophoceras bererense (177261) Eulophoceras sp. (82464) | |
Late/Upper Campanian | France | Sphenodiscus sp. (165896) Sphenodiscus sp., Sphenodiscus ubaghsi (82889) Sphenodiscus ubaghsi (165895) Sphenodiscus ubaghsi, Sphenodiscus rutoti (165894) | |
Late/Upper Campanian | USA (Delaware) | Eulophoceras sp. (83133) | |
Late/Upper Campanian | Spain | Libycoceras ismaeli (67002) | |
Late/Upper Campanian | France (Landes) | Sphenodiscus sp. (213785 214030) | |
Late/Upper Campanian | Angola | Libycoceras sp. (88885) Sphenodiscus sp., Manambolites dandensis (88882) | |
Late/Upper Campanian | Mexico (Coahuila) | Sphenodiscus sp. (79607 154244) | |
Late/Upper Campanian | Oman | Libycoceras sp. (67455) | |
Late/Upper Campanian | Saudi Arabia | Libycoceras sp., Manambolites sp. (184844) | |
Late/Upper Campanian | Nigeria | Libycoceras crossense (69692) Sphenodiscus lobatus, Libycoceras afikpoense (69626) | |
Late/Upper Campanian | Nigeria (Enugu) | Sphenodiscus sp., Sphenodiscus lobatus, Libycoceras afikpoense (82733) | |
Middle Campanian - Early/Lower Maastrichtian | Peru (Amazonas) | Lenticeras baltai (51672) | |
Campanian - Paleocene | Mali | Libycoceras sp. (202356) | |
Early/Lower Maastrichtian | Mexico (Coahuila de Zaragoza) | Sphenodiscus lenticularis (88243) | |
Early/Lower Maastrichtian | Egypt | Sphenodiscus lobatus (224160 224161) | |
Early/Lower Maastrichtian | USA (Mississippi) | Sphenodiscus lenticularis (4105) Sphenodiscus pleurisepta (4099 4100) Sphenodiscus sp. (4101 4104 4109) Sphenodiscus sp., Sphenodiscus pleurisepta, Sphenodiscus lenticularis (4118) | |
Early/Lower Maastrichtian | United Arab Emirates | Libycoceras sp. (175471) | |
Early/Lower Maastrichtian | Mexico (Nuevo Leon) | Coahuilites cavinsi (88239 88240) Coahuilites sheltoni (88237) Coahuilites sheltoni, Coahuilites orynskii, Sphenodiscus prepleurisepta (88238) Sphenodiscus intermedius (88244 88245) Sphenodiscus lenticularis (88241) Sphenodiscus lenticularis, Sphenodiscus intermedius, Sphenodiscus prepleurisepta (88242) | |
Early/Lower Maastrichtian | USA (Wyoming) | Sphenodiscus lenticularis (1575) | |
Early/Lower Maastrichtian | Nigeria | Libycoceras dandense (70970) Sphenodiscus lobatus (69625) | |
Early/Lower Maastrichtian | USA (Alabama) | Sphenodiscus sp. (4245 4247 4254 4256 4263 4264) Sphenodiscus sp., Sphenodiscus lobatus (4255) | |
Early/Lower Maastrichtian | USA (New Jersey) | Sphenodiscus lobatus (83067) | |
Early/Lower Maastrichtian | Jordan | Libycoceras acutodorsatus (178487 178489 178491) | |
Early/Lower Maastrichtian | USA (Georgia) | Sphenodiscus sp. (4267 4268 4269 4277 4278 4279 4280 4281) | |
Early/Lower Maastrichtian | USA (Maryland) | Sphenodiscus lenticularis (125950) | |
Late/Upper Maastrichtian | USA (South Carolina) | Sphenodiscus lobatus (152080) Sphenodiscus sp. (4342 4344 4346 4351 4352 4361) | |
Late/Upper Maastrichtian | USA (Missouri) | Sphenodiscus lobatus, Sphenodiscus pleurisepta (205794) | |
Late/Upper Maastrichtian | USA (South Dakota) | Sphenodiscus pleurisepta (178315) Sphenodiscus sp., Sphenodiscus lenticularis, Sphenodiscus beecheri (88511) | |
Late/Upper Maastrichtian | USA (Colorado) | Coahuilites sheltoni (178280 178281 178282 178283 178284 178308) Sphenodiscus pleurisepta (178285 178286 178287 178288 178312) | |
Late/Upper Maastrichtian | USA (Maryland) | Sphenodiscus lobatus (82399 82400 82403) Sphenodiscus lobatus, Sphenodiscus pleurisepta (82408) Sphenodiscus sp. (4364 4365 4367 4368 4369 4370 4371 4372 4373 4375 4376) Sphenodiscus sp., Sphenodiscus lobatus (4366) | |
Late/Upper Maastrichtian | USA (Texas) | Sphenodiscus pleurisepta (4401 4421 4423 4506 4520 4632) Sphenodiscus pleurisepta, Sphenodiscus lenticularis, Sphenodiscus intermedius (4536) Sphenodiscus sp. (4399 4400 4410 4413 4418 4425 4435 4439 4458 4523 5554 5555 5556 5558 5560) Sphenodiscus sp., Sphenodiscus tirensis (4470 4499) Sphenodiscus sp., Sphenodiscus tirensis, Sphenodiscus pleurisepta (4431) Sphenodiscus tirensis (4404 4407 4412 4428 4430 4476 4488 4495 4516) Sphenodiscus tirensis, Sphenodiscus pleurisepta (4398) | |
Late/Upper Maastrichtian | USA (New Jersey) | Sphenodiscus lobatus (4377 178550) Sphenodiscus sp. (4381) | |
Late/Upper Maastrichtian | USA (North Carolina) | Sphenodiscus sp. (4363) | |
Late/Upper Maastrichtian | Mexico (Coahuila de Zaragoza) | Sphenodiscus pleurisepta (88247) Sphenodiscus pleurisepta, Sphenodiscus aberrans (88246) | |
Late/Upper Maastrichtian | Jordan | Libycoceras acutodorsatus (170239) | |
Late/Upper Maastrichtian | USA (Wyoming) | Coahuilites sheltoni (178309) Sphenodiscus pleurisepta (178307 178310 178311 178313 178314) | |
Late/Upper Maastrichtian | Netherlands | Sphenodiscus binkhorsti (82496) | |
Late/Upper Maastrichtian | USA (Mississippi) | Coahuilites sp., Sphenodiscus pleurisepta (4163) Sphenodiscus lobatus (205793) Sphenodiscus pleurisepta (4123 4137 4160 4165) Sphenodiscus pleurisepta, Sphenodiscus lenticularis (4164) Sphenodiscus sp. (4117 4136 4161 7604) Sphenodiscus sp., Sphenodiscus pleurisepta (4125) Sphenodiscus sp., Sphenodiscus pleurisepta, Sphenodiscus lenticularis, Sphenodiscus beecheri (4127) | |
Late/Upper Maastrichtian | Belgium | Sphenodiscus binkhorsti (82493) | |
Late/Upper Maastrichtian | USA (Alabama) | Coahuilites sp. (4202) Sphenodiscus pleurisepta (83238) Sphenodiscus sp. (4201 4205 4215 4230 4231 4235 4236 205803) | |
Late/Upper Maastrichtian | Senegal | Daradiceras sp., Daradiceras gignouxi (208783) Sphenodiscus corroyi (208782) | |
Late/Upper Maastrichtian | Egypt | Libycoceras ismaelis (199919 199925) | |
Late/Upper Maastrichtian | India | Ammonites siva (41428) | |
Maastrichtian | Jordan | Libycoceras ismaeli (13366 36256) Sphenodiscus lobatus (166341 166343) Sphenodiscus lobatus, Libycoceras ismaeli (166342) | |
Maastrichtian | Mali | Libycoceras crossense (114954) Libycoceras sp. (202360) | |
Maastrichtian | USA (Texas) | Coahuilites sp., Sphenodiscus pleurisepta (4563) Sphenodiscus lenticularis (4535 4553) Sphenodiscus pleurisepta (4528 4548 4556 4559 4584 4588 4593 4601 4605 4608 4609 4611 4616 4621 4628 4629 4630 4631 4633 4636 7489) Sphenodiscus pleurisepta, Sphenodiscus intermedius (4582 4626) Sphenodiscus pleurisepta, Sphenodiscus lenticularis (4627) Sphenodiscus sp. (4525 4531 4537 4543 4546 4547 4575 4576 4578 4581 4586 4587 4594 4598 4603 4606 4607 4622 4623 4624 4625 4635 7480 7493) Sphenodiscus tirensis (7450 7519) | |
Maastrichtian | USA (Alabama) | Sphenodiscus sp. (4257) | |
Maastrichtian | USA (Arkansas) | Sphenodiscus sp. (4390) | |
Maastrichtian | Brazil (Paraíba) | Sphenodiscus brasiliensis (88073) Sphenodiscus sp., Sphenodiscus parahybensis (88070) | |
Maastrichtian | USA (Mississippi) | Sphenodiscus lobatus (7606) | |
Maastrichtian | Niger (Tahoua) | Libycoceras crossense (47112 47113 47115) Libycoceras sp. (178660) | |
Maastrichtian | Mexico (Coahuila) | Sphenodiscus lenticularis (51546) Sphenodiscus sp. (181867) | |
Maastrichtian | Niger | Libycoceras sp. (47111) | |
Maastrichtian | Nigeria | Libycoceras afikpoense (82732 82734) | |
Late/Upper Maastrichtian - Early/Lower Paleocene | USA (New Jersey) | Sphenodiscus lobatus (26819) |