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Megachasmidae

Description

Megachasma is a genus of sharks. It is usually considered to be the sole genus in the distinct family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is currently the sole extant member. Megachasma is known from a single living species, Megachasma pelagios.


From Wikipedia article at https://en.wikipedia.org/wiki/Megachasmidae, which is released under the Creative Commons Attribution-Share-Alike License 3.0.
Source Data
SourceIDLink
Global Biodiversity Information Facility ID (GBIF)5887https://www.gbif.org/species/5887
PaleoBioDB ID (PBDB)83151https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=83151
Rankfamily
Taxonomy (GBIF)Life : Animalia : Chordata : Elasmobranchii : Lamniformes : Megachasmidae
Taxonomy (PBDB)Life : Animalia : Chordata : Chondrichthyes : Lamniformes : Megachasmidae
Taxonomic Status (GBIF)accepted
Classification
(PBDB,GBIF)
RankNameAuthor
-Eukaryota
-OpisthokontaCavalier-Smith 1987
kingdomAnimalia
-TriploblasticaLankester 1877
-NephrozoaJondelius et al. 2002
-DeuterostomiaGrobben 1908
phylumChordataHaeckel 1847
subphylumVertebrataLamarck 1801
superclassGnathostomataGegenbauer 1874
classChondrichthyesHuxley 1880
subclassElasmobranchiiBonaparte 1838
infraclassEuselachii
-NeoselachiiCompagno 1977
-Selachii
superorderGaleomorphi
orderLamniformesBerg 1958
familyMegachasmidae
Scientific NameMegachasmidae
Opinions (PBDB)
NameRankOpinionEvidenceAuthor
Megachasmidaefamilybelongs to Orectolobiformesstated without evidencePurdy et al., 2001
Megachasmidaefamilybelongs to Lamniformesstated without evidenceShimada et al., 2014
Status (PBDB)extant
Taxon Size (PBDB)3
Extant Size (PBDB)2 (67%)
First Recorded Appearance28.4 - 23.0 Ma
Cenozoic
Environmentmarine (based on Vertebrata)
Motilityfast-moving
Dietsuspension feeder, carnivore
Taphonomyphosphatic (based on Vertebrata)
Primary Reference (PBDB)R. W. Purdy, V. P. Schneider, and S. P. Applegate, J. H. McLellan, R. L. Meyer, B. H. Slaughter. 2001. The Neogene sharks, rays, and bony fishes from Lee Creek Mine, Aurora, North Carolina. Smithsonian Contributions to Paleobiology 90:71-202
Common Name(s) Megamouth Sharks, Requins Grande Gueule, Tiburones Bocudos, メガマウスザメ, Requins à Grande Gueule, Tiburones Bocones
Wikipediahttps://en.wikipedia.org/wiki/Megachasmidae

Fossil Distribution

Subtaxa

NameStatusCommon Name(s)Fossil OccurrencesOldestYoungest
Megachasma
genus		accepted (GBIF)
listed (PBDB)		928.4 Ma
Oligocene		0 Ma
Extant

Obsolete Names

NameSourceTaxon RankTaxonomy
Megachamidae GBIFfamilyAnimalia : Chordata : Elasmobranchii : Lamniformes : Megachamidae

Synonymy List

YearName and Author
2001Megachasmidae Purdy et al. p. 105
2014Megachasmidae Shimada et al.

References

Purdy R. W., Schneider V. P., et al (2001) The Neogene sharks, rays, and bony fishes from Lee Creek Mine, Aurora, North Carolina, Smithsonian Contributions to Paleobiology 90, 71-202
Shimada K., Welton B. J., et al (2014) A new fossil megamouth shark (Lamniformes, Megachasmidae) from the Oligocene-Miocene of the western United States, Journal of Vertebrate Paleontology 34 2, 281-290 doi:10.1080/02724634.2013.803975
Froese, R. & D. Pauly (Editors). (2019). FishBase. World Wide Web electronic publication. version (02/2019). - via World Register of Marine Species
Van Der Laan, R.; Eschmeyer, W. N.; Fricke, R. (2014). Family-group names of Recent fishes. Zootaxa. 3882(1): 1-230. - via World Register of Marine Species
WoRMS (Mar 2013) - via The Interim Register of Marine and Nonmarine Genera
Eschmeyer online (Jul 2012) - via The Interim Register of Marine and Nonmarine Genera
Compagno, L.J.V. (2001). Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Volume 2. Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). FAO Species Catalogue for Fishery Purposes. No. 1, Vol. 2. Rome, FAO. 269p. - via World Register of Marine Species
CoL2006/FishBase - via The Interim Register of Marine and Nonmarine Genera
FishBase - via The Interim Register of Marine and Nonmarine Genera
Compagno, Leonard J. V., 2001: Sharks of the World: An annotated and illustrated catalogue of shark species known to date, vol. 2: Bullhead, mackerel and carpet sharks (Heterodontiformes, Lamniformes and Orectolobiformes). FAO Species Catalogue for Fishery Purposes, no. 1, vol. 2. viii + 269. - via Integrated Taxonomic Information System (ITIS)
Compagno, Leonard J. V. / Hamlett, William C., ed., 1999: Checklist of Living Elasmobranchs. Sharks, Skates, and Rays: The Biology of Elasmobranch Fishes. 471-498. - via Integrated Taxonomic Information System (ITIS)
Compagno, Leonard J. V., 1984: Sharks of the World: An annotated and illustrated catalogue of shark species known to date. FAO Fisheries Synopsis, no. 125, vol. 4, pt. 1. - via Integrated Taxonomic Information System (ITIS)
Nelson, Joseph S., 1994: null. Fishes of the World, Third Edition. xvii + 600. - via Integrated Taxonomic Information System (ITIS)
Data courtesy of: PBDB: The Paleobiology Database, Creative Commons CC-BY licenced. , GBIF: the Global Biodiversity Information Facility, various licences, iDigBio, various licences, and EOL: The Encyclopedia of Life (Open Data Public Domain). Because fossils are made of minerals too!
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