Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Bivalvia
Subclassis: Palaeoheterodonta
Ordo: Trigoniida
Superfamiliae (6): †Megatrigonioidea – †Myophorelloidea – †Pseudocardinioidea – Trigonioidea – †Trigonioidoidea – †Trigonodoidea
[Source: WoRMS 2017]
Name
Trigoniida Dall, 1889
Synonyms
Trigonioida Dall, 1889: 460 [original spelling, as suborder]
Trigonioida — Newell, 1965: 16, 18 [as order]
Trigoniida — Scarlato & Starobogatov, 1979 [emmended spelling]
Nomenclatural note: The ordinal endings -ida and -oida have both been extensively employed in bivalve literature. WoRMS follow the suggested standardisation to -ida as used in the bivalve classifications by Scarlato & Starobogatov (1979), Bieler et al. (2010, 2014) and Carter et al. (2011), among others.
References
Primary references
Dall, W.H. 1889. On the hinge of pelecypods and its development, with an attempt toward a better subdivision of the group. American Journal of Science Series 3, 38(228): 445–462. DOI: 10.2475/ajs.s3-38.228.445 BHL Reference page.
Newell, N.D. 1965. Classification of the Bivalvia. American Museum Novitates 2206: 1–25. hdl: 2246/4472 Open access Reference page.
Scarlato, O.A. & Starobogatov, Y.I. 1979. Osnovye cherty evoliutsii i sistema klassa Bivalvia. in Starobogatov, Y.I. (ed.). Morfologiia, Sistematika i Filogeniia Molliuskov. Akademiia Nauuk SSSR, Trudy Zoologicheskogo Instituta 80: 5–38. Reference page.
Additional references
Bouchet, P. & Rocroi, J.-P. 2010. Nomenclator of bivalve families. Malacologia 52(2): 1–184. DOI: 10.4002/040.052.0201 Reference page.
Bieler, R., Carter, J.G. & Coan, E.V. 2010. Classification of Bivalve Families. pp. 113–133 in Bouchet, P. & Rocroi, J.-P. (eds.). Nomenclator of Bivalve Families with a Classification of Bivalve Families. Malacologia 52(2): 1–184. DOI: 10.4002/040.052.0201 BHL Reference page.
Carter, J.G., Altaba, C.R., Anderson, L.C., Araujo, R., Biakov, A.S., Bogan, A.E., Campbell, D.C., Campbell, M., Chen, J.-H., Cope, J.C.W., Delvene, G., Dijkstra, H.H., Fang, Z.-J., Gardner, R.N., Gavrilova, V.A., Goncharova, I.A., Harries, P.J., Hartman, J.H., Hautmann, M., Hoeh, W.R., Hylleberg, J., Jiang, B.-Y., 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, Jr., J., Polubotko, I.V., Pons, J.M., Popov, S., Sámchez, 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). Paleontological Contributions 4: 1–47. DOI: 10.17161/PC.1808.8287 hdl: 1808/8287 Open access Reference page.
Bieler, R., Mikkelsen, P.M., Collins, T.M., Glover, E.A., González, V.L., Graf, D.L., Harper, E.M., Healy, J., Kawauchi, G.Y., Sharma, P.P., Staubach, S., Strong, E.E., Taylor, J.D., Tëmkin, I., Zardus, J.D., Clark, S., Guzmán, A., McIntyre, E., Sharp, P. & Giribet, G. 2014. Investigating the Bivalve Tree of Life – an exemplar-based approach combining molecular and novel morphological characters. Invertebrate Systematics 28(1): 32–115. DOI: 10.1071/IS13010 Reference page.
Links
Trigoniida in the World Register of Marine Species
Trigoniida – Taxon details on Integrated Taxonomic Information System (ITIS).
Trigoniida is an order of medium-sized saltwater clams, marine bivalve molluscs. Within the fossil record the occurrence of this order is widespread, ranging from the Devonian Period to Recent.
The diagnostic feature for the order is the unique and complex dentition of the shell, (i.e. the interior hinge teeth that articulate the two valves). The dentition is particularly elaborate within the family Trigoniidae.
Bieler, Carter, & Coan (2010) included the following families and superfamilies in Trigoniida.[1] Taxa marked with a † are extinct with the only extant family in the order being Trigoniidae.
Trigoniida
†Beichuanioidea Liu & Gu, 1988
†Beichuaniidae Liu & Gu, 1988
†Megatrigonioidea Van Hoepen, 1929
†Megatrigoniidae Van Hoepen, 1929
†Iotrigoniidae Savelive, 1958
†Rutitrigoniidae Van Hoepen, 1929
†Myophorelloidea Kobayashi, 1954
†Myophorellidae Kobayashi, 1954
†Buchotrigoniidae Leanza, 1993</small
†Laevitrigoniidae Savelive, 1958
†Vaugoniidae Kobayashi, 1954
Trigonioidea Lamarck, 1819
Trigoniidae Lamarck, 1819
†Eoschizodidae Newell & Boyd, 1975 (syn: Curtonotidae)
†Groeberellidae Pérez, Reyes, & Danborenea 1995
†Myophoriidae Bronn, 1849 (syn: Cytherodontidae, Costatoriidae, Gruenewaldiidae)
†Prosogyrotrigoniidae Kobayashi, 1954
†Scaphellinidae Newell & Ciriacks, 1962
†Schizodidae Newell & Boyd, 1975
†Sinodoridae Pojeta & Zhang, 1984
References
Bouchet, Philippe; Rocroi, Jean-Pierre; Bieler, Rüdiger; Carter, Joseph G.; Coan, Eugene V. (2010). "Nomenclator of Bivalve Families with a Classification of Bivalve Families". Malacologia. 52 (2): 1–184. doi:10.4002/040.052.0201. S2CID 86546840.
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