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Megatrigonia ✝

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Source Data

Source	ID	Link
Global Biodiversity Information Facility ID (GBIF)	4595032	https://www.gbif.org/species/4595032
PaleoBioDB ID (PBDB)	17236	https://paleobiodb.org/classic/checkTaxonInfo?taxon_no=17236

Rank

genus

Taxonomy (GBIF)

Life : Animalia : Mollusca : Bivalvia : Trigoniida : Megatrigoniidae : Megatrigonia

Taxonomy (PBDB)

Life : Animalia : Mollusca : Bivalvia : Trigoniida : Trigoniidae : Megatrigonia

Taxonomic Status (GBIF)

accepted

Classification
(PBDB,GBIF)

Rank	Name	Author
-	Eukaryota
-	Opisthokonta	Cavalier-Smith 1987
kingdom	Animalia
-	Bilateria
-	Eubilateria	Ax 1987
-	Protostomia	Grobben 1908
-	Spiralia
superphylum	Lophotrochozoa
phylum	Mollusca	Linnaeus 1758
class	Bivalvia	Linnaeus 1758
-	Eubivalvia	Carter 2011
subclass	Autobranchia
infraclass	Heteroconchia
-	Uniomorphi	Gray 1854
-	Unioni	Gray 1854
-	Unionata	Gray 1854
order	Trigoniida
superfamily	Trigonioidea	Lamarck 1819
family	Trigoniidae	Lamarck 1819
genus	Megatrigonia	van Hoepen 1929

Scientific Name

Megatrigonia van Hoepen, 1929

Name Published In

Pal. Navorsing Nas. Mus. Bloemfontein, 1, st. 1

Opinions (PBDB)

Name	Rank	Opinion	Evidence	Author
Megatrigonia	genus	belongs to Trigoniidae	stated with evidence	Cox, 1952
Megatrigonia	genus	belongs to Trigonioida	second hand	Sepkoski, 2002
Megatrigonia	genus	belongs to Megatrigoniinae	stated without evidence	Bouchet et al., 2010

Status (PBDB)

extinct

Taxon Size (PBDB)

First Recorded Appearance

157 - 145 Ma
Jurassic

Last Recorded Appearance

72.1 - 66.0 Ma
Late/Upper Cretaceous

Motility

facultatively mobile (based on Trigoniida)

Vision

blind (based on Bivalvia)

Diet

suspension feeder (based on Trigoniida)

Taphonomy

aragonite (based on Bivalvia)

Primary Reference (PBDB)

J. J. Sepkoski, Jr. 2002. A compendium of fossil marine animal genera. Bulletins of American Paleontology 363:1-560

Fossil Distribution

Subtaxa

Name	Status	Common Name(s)	Fossil Occurrences	Oldest	Youngest
Megatrigonia (Apiotrigonia) ✝ subgenus	listed (PBDB)		54	113 Ma Early/Lower Cretaceous	72.1 Ma Late/Upper Cretaceous
Megatrigonia (Iotrigonia) ✝ subgenus	listed (PBDB)		25	157 Ma Jurassic	72.1 Ma Late/Upper Cretaceous
Megatrigonia arsinoe ✝ species	listed (PBDB)
Megatrigonia carrincurensis ✝ species	listed (PBDB)
Megatrigonia conocardiiformis ✝ species	accepted (GBIF) listed (PBDB)
Megatrigonia discors ✝ species	listed (PBDB)
Megatrigonia eximia ✝ species	listed (PBDB)
Megatrigonia fontanaensis species	accepted (GBIF)	No associated record in PBDB
Megatrigonia obesa ✝ species	accepted (GBIF) listed (PBDB)
Megatrigonia piatnitzkyi species	accepted (GBIF)	No associated record in PBDB
Megatrigonia picunensis ✝ species	listed (PBDB)
Megatrigonia pusilla ✝ species	listed (PBDB)
Megatrigonia saggersoni species	accepted (GBIF)	No associated record in PBDB
Megatrigonia staffi ✝ species	accepted (GBIF) listed (PBDB)

Synonymy List

Year	Name and Author
1929	Megatrigonia van Hoepen
1952	Megatrigonia Cox
2002	Megatrigonia Sepkoski, Jr.
2010	Megatrigonia Bouchet et al.

References

Sepkoski, Jr. J. J. (2002) A compendium of fossil marine animal genera, Bulletins of American Paleontology 363, 1-560

Cox L. R. (1952) Notes on the Trigoniidae, with outlines of a classification of the family, Proceedings of the Malacological Society of London 29, 45-70 doi:10.1093/oxfordjournals.mollus.a064606

Bouchet P., Rocroi J.-P., et al (2010) Nomenclator of Bivalve Families with a Classification of Bivalve Families, Malacologia 52 2, 1-184 doi:10.4002/040.052.0201

Nomenclator Zoologicus. A list of the names of genera and subgenera in zoology from the tenth edition of Linnaeus, 1758 to the end of 2004. Digitised by uBio from vols. 1-9 of Neave (ed.), 1939-1996 plus supplementary digital-only volume. http://ubio.org/NomenclatorZoologicus (as at 2006). - via The Interim Register of Marine and Nonmarine Genera

Pal. Navorsing Nas. Mus. Bloemfontein, 1, st. 1 - via The Interim Register of Marine and Nonmarine Genera

Sepkoski, J. J., Jr. (2002). A compendium of fossil marine animal genera. Bulletins of American Paleontology. 363, 1-560. - via The Interim Register of Marine and Nonmarine Genera

WoRMS (Nov 2016). - via The Interim Register of Marine and Nonmarine Genera

Cooper, M. R. & Leanza, H. A. (2019). On the Middle Jurassic – Early Cretaceous Megatrigoniinae (Bivalvia, Trigoniida): their biogeography, evolution and classification. Neues Jahrbuch für Geologie und Paläontologie - Abhandlungen. 291 (1): 19-40. - via World Register of Marine Species

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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