Template:Taxonomy/Trigoniida

Bold ranks show taxa that will be shown in taxoboxes
because rank is principal or always_display=yes.

Ancestral taxa
Domain:	Eukaryota		[Taxonomy; edit]
Clade:	Podiata		[Taxonomy; edit]
Clade:	Amorphea		[Taxonomy; edit]
Clade:	Obazoa		[Taxonomy; edit]
Clade:	Opisthokonta		[Taxonomy; edit]
Clade:	Holozoa		[Taxonomy; edit]
Clade:	Filozoa		[Taxonomy; edit]
Clade:	Choanozoa		[Taxonomy; edit]
Kingdom:	Animalia		[Taxonomy; edit]
Subkingdom:	Eumetazoa		[Taxonomy; edit]
Clade:	ParaHoxozoa		[Taxonomy; edit]
Clade:	Bilateria		[Taxonomy; edit]
Clade:	Nephrozoa		[Taxonomy; edit]
Clade:	Protostomia		[Taxonomy; edit]
Clade:	Spiralia		[Taxonomy; edit]
Superphylum:	Lophotrochozoa		[Taxonomy; edit]
Phylum:	Mollusca		[Taxonomy; edit]
Class:	Bivalvia		[Taxonomy; edit]
Subclass:	Autobranchia		[Taxonomy; edit]
Infraclass:	Heteroconchia		[Taxonomy; edit]
Subterclass:	Palaeoheterodonta		[Taxonomy; edit]
Order:	Trigoniida		[Taxonomy; edit]

Not sure why you're here? Get started with the automated taxobox system.

Parent:	Palaeoheterodonta [Taxonomy; edit]
Rank:	ordo (displays as Order)
Link:	Trigoniida
Extinct:	no
Always displayed:	yes (major rank)
Taxonomic 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.
Parent's taxonomic references:	Bieler R, Bouchet P, Gofas S, Marshall B, Rosenberg G, La Perna R, Neubauer TA, Sartori AF, Schneider S, Vos C, ter Poorten JJ, Taylor J, Dijkstra H, Finn J, Bank R, Neubert E, Moretzsohn F, Faber M, Houart R, Picton B, Garcia-Alvarez O, eds. (2026). "Palaeoheterodonta". MolluscaBase. World Register of Marine Species. Retrieved 16 April 2026.