Oncoceratidae

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'''Characters''' (from Sweet 1964): Exogastric, ventromyarian brevicones and cyrtocones; siphuncle empty, on ventral side of chamber. Siphuncles suborthochoanitic and cylindrical in early stages of early forms, cyrtochoanitic with expanded segments in later stages and later forms. Connecting rigns thin. Conch usually compressed, few species with circular or depressed section. Actinosiphonate deposits in a few advance forms.
'''Characters''' (from Sweet 1964): Exogastric, ventromyarian brevicones and cyrtocones; siphuncle empty, on ventral side of chamber. Siphuncles suborthochoanitic and cylindrical in early stages of early forms, cyrtochoanitic with expanded segments in later stages and later forms. Connecting rigns thin. Conch usually compressed, few species with circular or depressed section. Actinosiphonate deposits in a few advance forms.
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==Phylogeny/Taxonomy==
 
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[[Oncocerida|<==]]Oncoceratidae [Maelonoceratidae, Melonoceratidae, Ooceratidae, Oocerinidae, Oonoceratidae, Rizoceratidae]
 
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    |--+--[[Brevicoceratidae]] S64
 
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    |  |--[[Nothoceratidae]] S64
 
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    |  |--[[Polyelasmoceratidae]] S64
 
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    |  |--''Oonoceras'' Hyatt 1884 [=''Ooceras'' (''l. c.''); incl. ''Exomegoceras'' Miller & Carrier 1942, ''Exomeroceras'' (''l. c.'')] S64
 
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    |  |    `--*''O. acinaces'' (Barrande 1866) [=''Cyrtoceras acinaces''] S64
 
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    |  `--''Oocerina'' Foerste 1926 [=''Oocenia'' (''l. c.'')] S64
 
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    |      `--*''O. lentigradum'' (Barrande 1866) [=''Cyrtoceras lentigradum''] S64
 
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    `--+--[[Diestoceratidae]] S64
 
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      |--[[Hemiphragmoceratidae]] S64
 
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      |--[[Trimeroceratidae]] S64
 
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      |--''[[Oncoceras]]'' S64
 
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      `--+--[[Acleistoceratidae]] S64
 
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          |--[[Poterioceratidae]] S64
 
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          `--Karoceratidae S64
 
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              |--''Osbornoceras'' Foerste 1936 S64
 
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              |    `--*''O. swinnertoni'' Foerste 1936 S64
 
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              |--''Shuranoceras'' Barskov 1959 S64
 
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              |    `--*''S. dolmatovi'' Barskov 1959 S64
 
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              `--''Karoceras'' Roussanoff 1909 S64
 
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                    |--*''K. laminare'' (Barrande 1877) [=''Cyrtoceras laminare''] S64
 
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                    `--''K. typicum'' S64
 
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Oncoceratidae ''incertae sedis'':
 
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  ''Asaphiceras'' Foerste 1928 S64
 
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    `--*''A. schucherti'' Foerste 1928 S64
 
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  ''Beloitoceras'' Foerste 1924 S64
 
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    |--*''B. pandion'' (Hall 1861) [=''Oncoceras pandion''] S64
 
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    |--''B. fremontense'' Foerste 1935 P68
 
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    |--''B. landerense'' Foerste 1935 P68
 
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    |--''B. popoagiense'' Foerste 1935 P68
 
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    `--''B. ulrichi'' Flower 1946 P68
 
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  ''Centrorizoceras'' Foerste 1930 S64
 
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    `--*''C. slocomi'' Foerste 1930 S64
 
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  ''[[Cyrtorizoceras]]'' S64
 
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  ''Digenuoceras'' Foerste 1935 S64
 
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    `--*''D. latum'' (Foerste 1929) [=''Oxygonioceras latum''] S64
 
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  ''Dunleithoceras'' Foerste 1924 [=''Dunleitoceras'' (''l. c.'')] S64
 
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    `--*''D. dunleithense'' (Miller & Gurley 1896) [=''Cyrtoceras dunleithense''] S64
 
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  ''Ehlersoceras'' Foerste 1932 S64
 
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    `--*''E. huronense'' Foerste 1932 S64
 
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  ''Ekwanoceras'' Foerste & Savage 1927 S64
 
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    `--*''E. breviconicum'' Foerste & Savage 1927 S64
 
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  ''Kentlandoceras'' Foerste 1932 S64
 
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    `--*''K. shrocki'' Foerste 1932 [=''K. schrocki''] S64
 
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  ''Loganoceras'' Foerste 1932 S64
 
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    `--*''L. regulare'' (Billings 1857) [=''Cyrtoceras regulare''] S64
 
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  ''Maelonoceras'' Hyatt 1884 [=''Meloceras'' (''l. c.''), ''Melonoceras'' (''l. c.'')] S64
 
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    `--*''M. praematurum'' (Billings 1860) [=''Phragmoceras praematurum''] S64
 
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  ''Metarizoceras'' Foerste 1930 [incl. ''Cyclorizoceras'' Foerste 1930] S64
 
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    |--*''M. savagei'' Foerste 1930 S64
 
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    `--''M. erectum'' Foerste 1930 P68
 
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  ''Miamoceras'' Flower 1946 S64
 
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    `--*''M. shideleri'' Flower 1946 S64
 
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  ''Neumatoceras'' Foerste 1935 S64
 
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    |--*''N. gibberosum'' Foerste 1935 S64
 
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    |--''N. breviposticum'' P68
 
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    |--''N. canyonense'' Foerste 1935 P68
 
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    |--''N. milleri'' Foerste 1935 P68
 
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    `--''N. nutans'' S64
 
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  ''Paroocerina'' Zhuravleva 1961 S64
 
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    `--*''P. podolskensis'' Zhuravleva 1961 S64
 
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  ''Richardsonoceras'' Foerste 1932 S64
 
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    |--*''R. simplex'' (Billings 1857) [=''Cyrtoceras simplex''] S64
 
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    |--''R. subcuneatum'' Foerste 1935 P68
 
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    `--''R. wyomingense'' Foerste 1935 P68
 
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  ''Rizosceras'' Hyatt 1884 [=''Rizoceras'' Hyatt ''in'' Zittel 1900] S64
 
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    |--*''R. indocile'' (Barrande 1866) [=''Orthoceras indocile''] S64
 
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    |--''R. cyathus'' T64
 
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    |--''‘Rizoceras’ infundibuliforme'' Foerste 1936 P68
 
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    |--''R. parvulum'' T64
 
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    |--''‘Rizoceras’ pocilliforme'' Foerste 1936 P68
 
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    `--''R. zebra'' T64
 
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  ''Romingoceras'' Foerste 1932 [=''Romingeroceras'' (''l. c.'')] S64
 
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    `--*''R. josephianum'' Foerste 1932 S64
 
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  ''Scofieldoceras'' Foerste 1932 [=''Schofieldoceras'' (''l. c.'')] S64
 
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    `--*''S. shumardi'' (Clarke 1897) [=''Cyrtoceras shumardi''] S64
 
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  ''Vaupelia'' Flower 1946 S64
 
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    `--*''V. russelli'' Flower 1946 S64
 
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  ''Zittelloceras'' Hyatt 1884 [=''Zitteloceras'' (''l. c.''); incl. ''Laphamoceras'' Foerste 1932] S64
 
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    |--*''Z. hallianum'' (d’Orbigny 1850) (see below for synonymy) S64
 
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    `--''Z. clarkeanum'' P68
 
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<nowiki>*</nowiki>''Zittelloceras hallianum'' (d’Orbigny 1850) [=''Cyrtoceras hallianum''; incl. ''C. lamellosum'' Hall 1847 ''non'' de Verneuil 1842] S64
 
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<nowiki>*</nowiki> Type species of generic name indicated
 
==References==
==References==
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[P68] Purnell, L. R. 1968. Catalog of the Type Specimens of Invertebrate Fossils. Part I: Paleozoic Cephalopoda. ''United States National Museum Bulletin'' 262: 1-198.
 
[S64] Sweet, W. C. 1964. Nautiloidea – Oncocerida. In ''Treatise on Invertebrate Paleontology'' pt. K. ''Mollusca 3. Cephalopoda – General Features – Endoceratoidea – Actinoceratoidea – Nautiloidea – Bactritoidea'' (R. C. Moore, ed.) pp. K277-K319. The Geological Society of America and the University of Kansas Press.
[S64] Sweet, W. C. 1964. Nautiloidea – Oncocerida. In ''Treatise on Invertebrate Paleontology'' pt. K. ''Mollusca 3. Cephalopoda – General Features – Endoceratoidea – Actinoceratoidea – Nautiloidea – Bactritoidea'' (R. C. Moore, ed.) pp. K277-K319. The Geological Society of America and the University of Kansas Press.
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[T64] Teichert, C. 1964. Morphology of hard parts. In ''Treatise on Invertebrate Paleontology'' pt. K. ''Mollusca 3. Cephalopoda – General Features – Endoceratoidea – Actinoceratoidea – Nautiloidea – Bactritoidea'' (R. C. Moore, ed.) pp. K13-K53. The Geological Society of America and the University of Kansas Press.
 
'''Credits'''
'''Credits'''
[[User:Christopher|Christopher]] 00:03, 16 January 2011 (UTC)
[[User:Christopher|Christopher]] 00:03, 16 January 2011 (UTC)

Revision as of 04:59, 10 August 2012

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