| Clathrocyclas | |
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| Illustration from Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876. Part III. Plate 59. Tripocyrtida, Podocyrtida et Phormocyrtida.
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| Genus: | Clathrocyclas Haeckel, 1881 [1] |
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Several, including:
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Clathrocyclas is a genus of radiolarians in the family Theoperidae.
Ernst Heinrich Philipp August Haeckel was a German zoologist, naturalist, eugenicist, philosopher, physician, professor, marine biologist, and artist who 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 claiming that an individual organism's biological development, or ontogeny, parallels and summarises its species' evolutionary development, or phylogeny.
The Radiolaria, also called Radiozoa, are protozoa of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ectoplasm. The elaborate mineral skeleton is usually made of silica. They are found as zooplankton throughout the global ocean. As zooplankton, radiolarians are primarily heterotrophic, but many have photosynthetic endosymbionts and are, therefore, considered mixotrophs. The skeletal remains of some types of radiolarians make up a large part of the cover of the ocean floor as siliceous ooze. Due to their rapid change as species and intricate skeletons, radiolarians represent an important diagnostic fossil found from the Cambrian onwards. Some common radiolarian fossils include Actinomma, Heliosphaera and Hexadoridium.
Karl Gegenbaur was a German anatomist and professor who demonstrated that the field of comparative anatomy offers important evidence supporting of the theory of evolution. As a professor of anatomy at the University of Jena (1855–1873) and at the University of Heidelberg (1873–1903), Karl Gegenbaur was a strong supporter of Charles Darwin's theory of organic evolution, having taught and worked, beginning in 1858, with Ernst Haeckel, 8 years his junior.
Clathrina is a genus of calcareous sponge in the family Clathrinidae. Several species formerly in Clathrina were transferred to the newly erected genera Arturia, Ernstia, Borojevia, and Brattegardia in 2013. The name is derived from the Latin word "clathratus" meaning "latticed".
Spongodiscidae is a family of radiolarians in the order Spumellaria. According to the original description by Ernst Haeckel, members of the family have a flat discoidal shell, in which a simple spherical central chamber is surrounded by an irregular spongy framework.
Cenellipsis is a genus of radiolarians in the order Spumellaria. The genus is extant but there are also fossil species.
Phaeocalpida is an order of cercozoans in the class Phaeodarea.
Castanellidae is a family of cercozoans in the order Phaeocalpida.
Tuscaroridae is a family of cercozoans, single-celled eukaryotes in the order Phaeocalpida.
Circoporidae is a family of cercozoans, single-celled eukaryotes in the order Phaeocalpida.
Aulacanthidae is a family of cercozoans in the order Phaeocystida.
Phaeodendrida is an order of cercozoans in the class Phaeodarea.
Phaeosphaerida is an order of cercozoans in the class Phaeodarea.
Aulosphaeridae is a family of cercozoans in the order Phaeosphaerida.
"Monothalamea" is a grouping of foraminiferans, traditionally consisting of all foraminifera with single-chambered tests. Recent work has shown that the grouping is paraphyletic, and as such does not constitute a natural group; nonetheless, the name "monothalamea" continues to be used by foraminifera workers out of convenience.
Theoperidae is a family of radiolarians in the order Nassellaria.
Cornutanna is a genus of radiolarians in the order Nassellaria.
Collodaria is a unicellular order under the phylum Radiozoa and the infrakingdom Rhizaria. Like most of the Radiolaria taxonomy, Collodaria was first described by Ernst Haeckel, a German scholar who published three volumes of manuscript describing the extensive samples of Radiolaria collected by the voyage of HMS Challenger. Recent molecular phylogenetic studies concluded that there are Collodaria contains three families, Sphaerozodae, Collosphaeridae, and Collophidilidae.
Amphoriscus is a genus of calcareous sponges in the family Amphoriscidae.
Rhodaliidae is a family of siphonophores. In Japanese they are called ヒノマルクラゲ.
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