Family Sphenoderiidae Chatelain et al, 2013

Diagnosis: Testate amoeboid organisms with a test covered with self-secreted circular to elliptical silica scales that can be of different sizes and shapes, but without indentations. The pseudostome is surrounded with small round or oval scales. Because usually one side (“ventral”) of the aperture is shorter, the opening lies sub-terminal.

Two genera: Sphenoderia and Trachelocorythion.
Typegenus: Sphenoderia.

Recent posts

Ditrema spec.

Ditrema spec. Ditrema spec. Diagnosis: Shell as with D. longicollis, but much smaller, surrounded by V-shaped structures that gave it the impression of a star.

Read More »

Rotosphaerida

Pompholyxophrys Pompholyxophrys Pompholyxophrys Rabdiophrys Rotosphaerida Rainer, 1968 Diagnosis: Aciliate predominantly spherical or flattened amoebae from which elongated actin-based filopodia extend; with flat discoid mitochondrial cristae;

Read More »

Centropyxis tabel

Key to Centropyxis species 1 Test in dorsal view circular or almost circular 2 – Test in dorsal view irregular due to various outgrows and

Read More »