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Megalodontoidea
Taxonomy
Megalodontacea was named by Morris (1853) [m. kosnik taxon no: 6096].
It was corrected as Megalodontoidea by Yancey and Stanley (1999), Nevesskaja (2009) and Carter et al. (2011).
It was assigned to Hippuritoida by Newell (1965), Vokes (1980) and Yancey and Stanley (1999); to Lucinoida by Nevesskaja (2009); and to Megalodontida by Carter et al. (2011).
It was corrected as Megalodontoidea by Yancey and Stanley (1999), Nevesskaja (2009) and Carter et al. (2011).
It was assigned to Hippuritoida by Newell (1965), Vokes (1980) and Yancey and Stanley (1999); to Lucinoida by Nevesskaja (2009); and to Megalodontida by Carter et al. (2011).
Synonymy list
| Year | Name and author |
|---|---|
| 1853 | Megalodontacea Morris |
| 1965 | Megalodontacea Newell p. 19 |
| 1980 | Megalodontacea Vokes p. 193 |
| 1999 | Megalodontoidea Yancey and Stanley p. 5 |
| 2009 | Megalodontoidea Nevesskaja |
| 2011 | Megalodontoidea Carter et al. |
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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.
Superfm. †Megalodontoidea Morris 1853
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Fm. †Ceratomyopsidae Cox 1964
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G. †Ceratomyopsis Cossmann 1915
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†Ceratomyopsis arabica Cox 1935
†Ceratomyopsis somaliensis Weir 1929
†Ceratomyopsis striata d'Orbigny 1822
†Ceratomyopsis undulata Morris and Lycett 1855
Invalid names: Ceromyopsis de Loriol 1897 [replaced]
G. †Tellurimya Cox 1964
Fm. †Dicerocardiidae Kutassy 1934
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G. †Ambocardia
G. †Cornucardia Koken 1913
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†Cornucardia hornigii Bittner 1901
†Cornucardia timorensis Krumbeck 1924
Invalid names: Craspedodon Bittner 1901 [replaced]
G. †Dicerocardium Stoppani 1856
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†Dicerocardium dolomiticum Loretz 1875
†Dicerocardium himalayense Stoliczka 1869
†Dicerocardium incisum Frech 1912
†Dicerocardium jani Stoppani 1865
†Dicerocardium mediofasciatum Frech 1912
†Dicerocardium ragazzonii Stoppani 1865
G. †Megalocardia
G. †Physocardia Wöhrmann 1894
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†Physocardia carintiaca Boué 1835
†Physocardia ogilviae Wöhrmann 1894
†Physocardia verae Frech 1912
G. †Platycardia Beringer 1949
G. †Praedicerocardium Friesenbichler et al. 2019
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†Praedicerocardium vetulus Friesenbichler et al. 2019
G. †Rostrocardia Freneix 1972
G. †Gemmelarodus
Fm. †Megalodontidae Morris 1853
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G. †Ampezzania Allasinaz and Zardini 1977
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†Ampezzania subovata Allasinaz and Zardini 1977
†Ampezzania zardinii Allasinaz and Zardini 1977
G. †Conchodon Stoppani 1865
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†Conchodon infraliasicus Schafhäutl 1863
†Conchodon infraliasicus pyrenaeus Mensink and Tichy 1977
Invalid names: Lycodus Schafhäutl 1863 [replaced]
G. †Cumularia
G. †Eomegalodus
G. †Megalodon Sowerby 1827
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†Megalodon abbreviatus von Schlotheim 1820
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Invalid names: Megalodon cucullatus Sowerby 1827 [synonym]
†Megalodon cassianus Hoernes 1895
†Megalodon hungaricum Kutassy 1933
†Megalodon klipsteinii Bittner 1895
†Megalodon longjiangensis Liang 1980
†Megalodon pumilus Gümbel 1862
†Megalodon rostratiforme Krumbeck 1913
†Megalodon yanceyi Nakazawa 2002
Invalid names: Megalodus Goldfuss 1836 [nomen vanum]
G. †Neomegalodon Guembel 1864
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†Neomegalodon boeckhi Hoernes 1898
†Neomegalodon cornutus Yao et al. 2007
†Neomegalodon hoernesi Frech 1904
†Neomegalodon triqueter Wulfen 1793
Invalid names: Gemmellarodus di Stefano 1912 [synonym], Rossiodus Allasinaz 1965 [synonym]
G. †Pachyrisma Morris and Lycett 1850
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Subg. †Pachyrisma (Pachymegalodon) Gümbel 1862
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†Pachymegalodus nimassicus Krumbeck 1923
†Pachymegalodus timorensis Wanner 1910
Subg. †Pachyrisma (Pachyrismella)
†Pachyrisma grande Morris and Lycett 1850
†Pachyrisma rimosum Münster 1841
G. †Paramegalodus Cox 1969
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†Paramegalodus eupalliatum Frech 1912
†Paramegalodus prolatus Allasinaz 1977
†Paramegalodus travenanzensis Allasinaz 1977
G. †Protodiceras Böhm 1892
G. †Protomegalodon
G. †Quemocuomegalodon Yao et al. 2003
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†Quemocuomegalodon circularis Yao et al. 2007
†Quemocuomegalodon longitatus Yao et al. 2003
†Quemocuomegalodon orientus Yao et al. 2003
Fm. †Wallowaconchidae Yancey and Stanley 1999
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Invalid names: Pachyrismatidae Scarlato and Starobogatov 1979 [empty]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: superf = superfamily, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2003 | |||||
Age range: base of the Niagaran to the top of the Maastrichtian or 438.00000 to 66.00000 Ma
Collections (358 total)
Oldest occurrences | |||
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Silurian | USA (Alaska) | Megalomus sp. (111898) | |
| Telychian | USA (Iowa) | Megalomoidea sp. (26763) | |
| Niagaran | USA (Indiana) | Megalomus canadensis (22818) | |
| Sheinwoodian | Sweden (Gotland) | Megalomus sp. (13597) | |
| Sheinwoodian | Russian Federation | Megalomus sp. (23498 23499) | |
| Wenlock | Russian Federation | Megalomoidea gothlandicus (24776) | |
| Wenlock | Russian Federation (Yakutiya) | Megalomus sp. (79400) | |
| Wenlock - Ludlow | USA (Iowa) | Megalomoidea sp. (25018) | |
| Homerian - Gorstian | Sweden (Gotland) | Megalomus gotlandicus (13602) | |
| Ludfordian | Sweden (Gotland) | Megalomus gotlandicus (13616) | |
Youngest occurrences |
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| Time interval | Ma | Country or state | PBDB collection number |
| Early/Lower Tithonian | Germany (Bavaria) | Pachyrisma latum (57791) Pachyrisma sp. (57157) | |
| Late/Upper Tithonian | Portugal | Ceratomyopsis striata (8166) | |
| Middle Albian | Egypt | Megalocardia simplex (98326) | |
| Late/Upper Albian | Egypt | Megalocardia simplex (98327) | |
| Early/Lower Cenomanian | Egypt | Rostrocardia papieri (114872 114873) | |
| Late/Upper Cenomanian | Egypt | Rostrocardia papieri (114793 114794 114795) | |
| Late/Upper Santonian | Austria | Ambocardia planidorsata (114268) | |
| Maastrichtian | Germany | Ambocardia corculum, Ambocardia sp. (1349) | |
| Maastrichtian | Egypt | Ambocardia chargehensis (1363) | |
| Maastrichtian | Austria | Ambocardia planidorsata (1379) | |