Testate amoebae (formerly thecamoebians, Testacea or Thecamoeba) are a polyphyletic group of unicellular amoeboid protists, which differ from naked amoebae...

Arcellinid testate amoebae or Arcellinida, Arcellacean or lobose testate amoebae are single-celled protists partially enclosed in a simple test (shell)...

Free-living amoebae may be "testate" (enclosed within a hard shell), or "naked" (also known as gymnamoebae, lacking any hard covering). The shells of testate amoebae...

as pseudopodia, to crawl along surfaces. Many groups of amoebae are naked, but testate amoebae and foraminifera grow a shell around their cell made from...

arcellinid testate amoebae and the sole family of the infraorder Hyalospheniformes. Commonly referred to as "hyalospheniids", these lobose amoebae are characterized...

Meisterfeldia is a genus of arcellinid testate amoebae erected in 2016 that unites several new species as well as old species previously found in the...

Erugomicula is a genus of testate lobose amoebae found in the order Arcellinida. It was described in 2021 and tentatively placed in the family Hyalospheniidae...

notably sea urchins and microorganisms such as testate foraminiferans, radiolarians, and testate amoebae. The term is also applied to the covering of scale...

(from Latin planus 'flat' and carina 'keel') is a genus of arcellinid testate amoebae belonging to the family Hyalospheniidae. It was created in 2016 to...

Certesella is a genus of testate amoebae belonging to the family Hyalospheniidae. It is characterized by a test that presents two symmetrical holes near...

Cryptodifflugiidae is a family of arcellinid testate amoebae. Members of this family are conopodous (with conical pseudopods) amoebae with the body in a clear, usually...

such as Jahn, who grouped all amoebae with granular pseudopodia together, but most split the lobose amoebae into testate Testacealobosia and naked Gymnamoebia...

Porosia is a genus of arcellinid testate amoebae belonging to the family Hyalospheniidae. Described in 1942, it used to be a monotypic genus with the...

Centropyxis is a genus of lobose testate amoebae (Amoebozoa), including the species Centropyxis aculeata. WoRMS (2010). "Centropyxis Stein, 1857". World...

g. diatom frustules) and are thus commonly referred to as testate amoebae or shelled amoebae. Difflugia are particularly common in marshes and other freshwater...

Thecofilosea is a class of unicellular testate amoebae belonging to the phylum Cercozoa. They are amoeboflagellates, organisms with flagella and pseudopodia...

Ancient Greek helos 'a bog' and pera 'a bag'): 162  is a genus of testate amoebae belonging to the order Arcellinida. It is the sole genus within family...

Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell nacre chiton shell gastropod...

Cryptodifflugia leachi is an aquatic species of testate amoebae discovered in 2006 in Canada, living in bottom sediment from wetlands at the base of the...

include: Tests or frustules (i.e. shells) of diatoms, Radiolaria, and testate amoebae. Silica phytoliths in the cells of many plants including Equisetaceae...

are still not entirely clear. Foraminifera are closely related to testate amoebae. The most striking aspect of most foraminifera are their hard shells...

Arcella is a genus of testate amoebae in the order Arcellinida, commonly found in ponds, wetlands, moss, and soil. It is distinguished by a radially symmetrical...

Padaungiella is a genus of testate amoebae belonging to the family Hyalospheniidae. It contains species previously found under the genus Nebela, distinguished...

Protist shell coccosphere coccolith diatom frustule foraminifera test testate amoebae Seashell echinoderm stereom mollusc shell nacre chiton shell gastropod...

Nebela is a diverse genus of testate amoebae of cosmopolitan distribution, belonging to the family Hyalospheniidae. They are "prey agglutinated" or "kleptosquamic"...

It contains all amoebae of the families Microcoryciidae, which was previously regarded as Arcellinida (an order of testate amoebae), and Trichosphaeriidae...

Greek αλάβαστρος (alábastros) 'alabaster') is a genus of arcellinid testate amoebae belonging to the family Hyalospheniidae. It contains species with an...

Lecythium is a genus of testate amoebae within the Chlamydophryidae. These amoebae bear a thin and hyaline test and are common in freshwater and soil,...

related to Cryptodifflugia. Cryptodifflugia is a genus of arcellinid testate amoebae. It contains all the species previously grouped as the genus Difflugiella...

Neoproterozoic Chuar Group, Grand Canyon: a classification guided by modern testate amoebae" (PDF). Journal of Paleontology. 77 (3): 409–429. Bibcode:2003JPal...