MolluscaBase taxon details
Megalodontidae J. Morris & Lycett, 1850 †
833307 (urn:lsid:marinespecies.org:taxname:833307)
accepted
Family
Megalonidae J. Morris & Lycett, 1850 † · unaccepted > misspelling - incorrect original spelling
- Genus Ampezzania Allasinaz, 1977 †
- Genus Conchodon Stoppani, 1865 †
- Genus Megalodon J. De C. Sowerby, 1827 †
- Genus Neomegalodon Gümbel, 1862 †
- Genus Paramegalodus L. R. Cox, 1969 †
- Genus Parvimegalodon Karczewski, 1992 †
- Genus Pinzonella Reed, 1932 †
- Genus Quemocuomegalodon H.-Z. Yao, J.-G. Sha & R.-J. Zhang, 2003 †
- Genus Rhaetomegalodon Végh-Neubrandt, 1970 †
- Genus Triadomegalodon Végh-Neubrandt, 1974 †
- Genus Dracodus Schafhäutl, 1863 † (uncertain > unassessed)
- Genus Eomegalodus Spriestersbach, 1915 † (uncertain > unassessed)
- Genus Conchodus Tausch, 1891 † accepted as Conchodon Stoppani, 1865 † (unaccepted > unjustified emendation, also, junior homonym of Conchodus McCoy, 1848 [Sarcopterygii])
- Genus Gemmellarodus Di Stefano, 1912 † accepted as Neomegalodon Gümbel, 1862 † (unaccepted > junior subjective synonym)
- Genus Lycodus Schafhäutl, 1863 † accepted as Dracodus Schafhäutl, 1863 † (unaccepted > junior homonym, junior homonym of Lycodus Quenstedt, 1856 (Actinopterygii))
- Genus Megalodonta G. A. Goldfuss, 1832 † accepted as Megalodon J. De C. Sowerby, 1827 † (unaccepted > unjustified emendation)
- Genus Megalodus G. A. Goldfuss, 1837 † accepted as Megalodon J. De C. Sowerby, 1827 † (unaccepted > unjustified emendation)
- Genus Rossiodus Allasinaz, 1965 † accepted as Neomegalodon Gümbel, 1862 † (unaccepted > junior subjective synonym)
- Genus Tauroceras Schafhäutl, 1854 † accepted as Neomegalodon Gümbel, 1862 † (unaccepted > junior subjective synonym)
marine, brackish, fresh, terrestrial
fossil only
Morris, J.; Lycett, J. (1850). On <i>Pachyrisma</i>, a fossil genus of lamellibranchiate Conchifera. <em>The Quarterly Journal of the Geological Society of London.</em> 6(1): 399-402., available online at https://www.biodiversitylibrary.org/page/36934268
page(s): 401; note: Original spelling: Megalonidae. [details]
page(s): 401; note: Original spelling: Megalonidae. [details]
Nomenclature Placed on the Official List of Family-Group Names in Zoology by Opinion 1829, Bulletin of Zoological Nomenclature, 53(1):...
Nomenclature Placed on the Official List of Family-Group Names in Zoology by Opinion 1829, Bulletin of Zoological Nomenclature, 53(1): 66-67, where it is dated from 1853. [details]
MolluscaBase eds. (2026). MolluscaBase. Megalodontidae J. Morris & Lycett, 1850 †. Accessed at: https://www.molluscabase.org/aphia.php?p=taxdetails&id=833307 on 2026-09-27
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original description
Morris, J.; Lycett, J. (1850). On <i>Pachyrisma</i>, a fossil genus of lamellibranchiate Conchifera. <em>The Quarterly Journal of the Geological Society of London.</em> 6(1): 399-402., available online at https://www.biodiversitylibrary.org/page/36934268
page(s): 401; note: Original spelling: Megalonidae. [details]
basis of record Carter, J. G.; Altaba, C. R.; Anderson, L. C.; Araujo, R.; Biakov, A. S.; Bogan, A. E.; Campbell, D. C.; Campbell, M.; Jin-hua, C.; Cope, J. C. W.; Delvene, G.; Dijkstra, H. H.; Zong-jie, F.; Gardner, R. N.; Gavrilova, V. A.; Goncharova, I. A.; Harries, P. J.; Hartman, J. H.; Hautmann, M.; Hoeh, W. R.; Hylleberg, J.; Bao-yu, J.; Johnston, P.; Kirkendale, L.; Kleemann, K.; Koppka, J.; Kříž, J.; Machado, D.; Malchus, N.; Márquez-Aliaga, A.; Masse, J.-P.; McRoberts, C. A.; Middelfart, P.U.; Mitchell, S.; Nevesskaja, L. A.; Özer, S.; Pojeta, J. Jr.; Polubotko, I.V.; Pons, J. M.; Popov, S.; Sánchez, T.; Sartori, A. F.; Scott, R. W.; Sey, I. I.; Signorelli, J. H.; Silantiev, V. V.; Skelton, P. W.; Steuber, T.; Waterhouse, J. B.; Wingard, G. L.; Yancey, T. (2011). A synoptical classification of the Bivalvia (Mollusca). <em>Paleontological Contributions.</em> 4: 1-47. [details]
additional source Végh-Neubrandt, E. (1982). Triassische Megalodontaceae. Entwicklung, Stratigraphie und Paläontologie. Budapest, Akadémiai Kiadó, 1-526. [details] Available for editors
[request]
additional source Yao, Hua-zhou; Zhang, Ren-jie; Pojeta, John Jr.; Sha, Jin-geng; Wang, Jian-xiong. (2007). Late Triassic megalodontids (Bivalvia) from the headwaters of the Yangtz River, Qinghai Province, West China. <em>Journal of Paleontology.</em> 81 (6), 1327-1347., available online at https://doi.org/10.1666/05-152.1 [details]
redescription Morris, J. & Lycett, J. (1853-1855). A Monograph of the Mollusca from the Great Oolite, chiefly from Minchinhampton and the coast of Yorkshire. Part II: Bivalves; Part III: Bivalves. <em>Monographs of the Palaeontographical Society.</em> 7(23): 1-80 [1853]; 8(28): 81-147 [1855; for 1854]., available online at https://biodiversitylibrary.org/page/20754766
page(s): 78 [details]
page(s): 401; note: Original spelling: Megalonidae. [details]
basis of record Carter, J. G.; Altaba, C. R.; Anderson, L. C.; Araujo, R.; Biakov, A. S.; Bogan, A. E.; Campbell, D. C.; Campbell, M.; Jin-hua, C.; Cope, J. C. W.; Delvene, G.; Dijkstra, H. H.; Zong-jie, F.; Gardner, R. N.; Gavrilova, V. A.; Goncharova, I. A.; Harries, P. J.; Hartman, J. H.; Hautmann, M.; Hoeh, W. R.; Hylleberg, J.; Bao-yu, J.; Johnston, P.; Kirkendale, L.; Kleemann, K.; Koppka, J.; Kříž, J.; Machado, D.; Malchus, N.; Márquez-Aliaga, A.; Masse, J.-P.; McRoberts, C. A.; Middelfart, P.U.; Mitchell, S.; Nevesskaja, L. A.; Özer, S.; Pojeta, J. Jr.; Polubotko, I.V.; Pons, J. M.; Popov, S.; Sánchez, T.; Sartori, A. F.; Scott, R. W.; Sey, I. I.; Signorelli, J. H.; Silantiev, V. V.; Skelton, P. W.; Steuber, T.; Waterhouse, J. B.; Wingard, G. L.; Yancey, T. (2011). A synoptical classification of the Bivalvia (Mollusca). <em>Paleontological Contributions.</em> 4: 1-47. [details]
additional source Végh-Neubrandt, E. (1982). Triassische Megalodontaceae. Entwicklung, Stratigraphie und Paläontologie. Budapest, Akadémiai Kiadó, 1-526. [details] Available for editors
[request]additional source Yao, Hua-zhou; Zhang, Ren-jie; Pojeta, John Jr.; Sha, Jin-geng; Wang, Jian-xiong. (2007). Late Triassic megalodontids (Bivalvia) from the headwaters of the Yangtz River, Qinghai Province, West China. <em>Journal of Paleontology.</em> 81 (6), 1327-1347., available online at https://doi.org/10.1666/05-152.1 [details]
redescription Morris, J. & Lycett, J. (1853-1855). A Monograph of the Mollusca from the Great Oolite, chiefly from Minchinhampton and the coast of Yorkshire. Part II: Bivalves; Part III: Bivalves. <em>Monographs of the Palaeontographical Society.</em> 7(23): 1-80 [1853]; 8(28): 81-147 [1855; for 1854]., available online at https://biodiversitylibrary.org/page/20754766
page(s): 78 [details]
From editor or global species database
Nomenclature Placed on the Official List of Family-Group Names in Zoology by Opinion 1829, Bulletin of Zoological Nomenclature, 53(1): 66-67, where it is dated from 1853. [details]
