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Suborder EUGLYPHINA Kosakyan et al., 2016

Euglyphidae Wallich 1864, emend Lara et al., 2007
Test with thin elliptical scales; presence of specialized scales around the pseudostome with typical indentation.
Euglypha.

Euglypha
Euglypha
Euglypha
Euglypha
Euglypha
Euglypha
Euglypha
Euglypha
Assulinidae Lara et al. 2007
Acrostome test composed of elliptic plates disposed in a regular, alternate pattern; test strongly compressed; no specialized type of scales around pseudostome.
Assulina, Placocista, Valkanovia.
Assulina
Assulina
Assulina
Assulina
Placocista
Placocysta
Placocista
Placocysta

Trinematidae Hoogenraad & De Groot 1940, emend Adl et al. 2012
Test with bilateral symmetry; scales oval or round, sometimes of both types; specialized tooth-shaped scales around the aperture; aperture invaginated in some taxa.
Corythion, Playfairina, Puytoracia, Trinema.

Corythion
Corythion
Trinema
Trinema
Puytoracia
Puytoracia
Playfairina
Playfairina
Sphenoderiidae Chatelain et al, 2013
Test with self-secreted circular to elliptical silica scales of different sizes and shapes, but without indentations; pseudostome surrounded with small round or oval scales; usually its ventral side shorter.
Sphenoderia, Trachelocorythion.
Trachelocorythion
Trachelcorythion
Sphenoderia
Sphenoderia
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Tracheleuglypha elongata

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Tracheleuglypha acolla

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