Spongodiscidae
Spongodiscidae is a family of radiolarians in the order Spumellaria. According to the original description by Ernst Haeckel Ernst Heinrich Philipp August Haeckel (; 16 February 1834 – 9 August 1919) was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist and artist. He discovered, described and named thousands of new sp ..., members of the family have a flat discoidal shell, in which a simple spherical central chamber is surrounded by an irregular spongy framework. References External links Polycystines Radiolarian families {{Radiolarian-stub ...
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Spumellaria
Spumellaria is an order of radiolarians in the class Polycystinea. They are ameboid protists appearing in abundance in the world's oceans, possessing a radially-symmetrical silica (opal) skeleton that has ensured their preservation in fossil records. They belong among the oldest Polycystine organisms, dating back to the lower Cambrian (ca. 515 million years). Historically, many concentric radiolarians have been included in the ''Spumellaria'' order based on the absence of the initial spicular system, an early-develop structure that, by its lacking, sets them apart from '' Entactinaria'' despite their similar morphology.
Mendez Sandin. Diversity and Evolution of Nassellaria and Spumellaria (Radiolaria). Protistology. Sorbonne Université, 2019. English. Accessed at: https://tel.archives-ouvertes.fr/tel-03137926/file/ME ...
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Stylodictya
The genus ''Stylodictya'' belongs to a group of organisms called the Radiolaria. Radiolarians are amoeboid protists found as zooplankton in oceans around the world and are typically identified by their ornate skeletons. History Polycistine radiolarians were first popularized by Ernst Haeckel, a German biologist who drew Radiolaria in detail and described 2775 new polycystine species. However the first taxonomic descriptions of Radiolarians were done by Christian Gottfried Ehrenberg from 1838 to 1876. Ehrenberg was the first to describe ''Stylodictya'' with what is now the lectotype species ''Stylodictya gracilis''. Early classifications of radiolarians were somewhat arbitrary and have been improved upon since the mid-nineteenth century drawings by Ehrenberg and Haeckel. Improvements in microscopy technology have allowed more specific morphological descriptions of pre-described radiolarian genera. In addition, new species of Stylodictya and other radiolarians are constantly bein ...
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Porodiscus (protist)
''Porodiscus'' may refer to: * ''Porodiscus'' (fungus), a fungi genus within the class Sordariomycetes * ''Porodiscus'' (diatom), a genus of fossil diatom in the family Coscinodiscaceae * ''Porodiscus'' (protist), a radiolarian protists genus in the family Spongodiscidae Spongodiscidae is a family of radiolarians in the order Spumellaria. According to the original description by Ernst Haeckel Ernst Heinrich Philipp August Haeckel (; 16 February 1834 – 9 August 1919) was a German zoologist, naturalist, eu ...

Eukaryota
Eukaryotes () are organisms whose cells have a nucleus. All animals, plants, fungi, and many unicellular organisms, are Eukaryotes. They belong to the group of organisms Eukaryota or Eukarya, which is one of the three domains of life. Bacteria and Archaea (both prokaryotes) make up the other two domains. The eukaryotes are usually now regarded as having emerged in the Archaea or as a sister of the Asgard archaea. This implies that there are only two domains of life, Bacteria and Archaea, with eukaryotes incorporated among archaea. Eukaryotes represent a small minority of the number of organisms, but, due to their generally much larger size, their collective global biomass is estimated to be about equal to that of prokaryotes. Eukaryotes emerged approximately 2.3–1.8 billion years ago, during the Proterozoic eon, likely as Flagellated cell, flagellated phagotrophs. Their name comes from the Greek language, Greek wikt:εὖ, εὖ (''eu'', "well" or "good") and wikt:� ...
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Ernst Haeckel
Ernst Heinrich Philipp August Haeckel (; 16 February 1834 – 9 August 1919) was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist and artist. He discovered, described and named thousands of new species, mapped a genealogical tree relating all life forms and coined many terms in biology, including ''ecology'', ''phylum'', ''phylogeny'', and '' Protista.'' Haeckel promoted and popularised Charles Darwin's work in Germany and developed the influential but no longer widely held recapitulation theory ("ontogeny recapitulates phylogeny") claiming that an individual organism's biological development, or ontogeny, parallels and summarises its species' evolutionary development, or phylogeny. The published artwork of Haeckel includes over 100 detailed, multi-colour illustrations of animals and sea creatures, collected in his '' Kunstformen der Natur'' ("Art Forms of Nature"), a book which would go on to influence the Art Nouveau artistic ...
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