| Pliciloricus | |
|---|---|
 | |
| Pliciloricus enigmaticus Higgins & Kristensen, 1986. | |
Scientific classification  | |
| Domain: | Eukaryota |
| Kingdom: | Animalia |
| Phylum: | Loricifera |
| Order: | Nanaloricida |
| Family: | Pliciloricidae |
| Genus: | Pliciloricus Higgins & Kristensen, 1986. |
Pliciloricus is a genus of marine organisms Pliciloricidae family, the phylum Loricifera described by Higgins & Kristensen, 1986. [1]
Loricifera is a phylum of very small to microscopic marine cycloneuralian sediment-dwelling animals with 43 described species. and approximately 100 more that have been collected and not yet described. Their sizes range from 100 μm to ca. 1 mm.
Reinhardt Møbjerg Kristensen is a Danish invertebrate biologist, noted for the discovery of three new phyla of microscopic animals: the Loricifera in 1983, the Cycliophora in 1995, and the Micrognathozoa in 2000. He is also considered one of the world's leading experts on tardigrades. His recent field of work revolves mostly around arctic biology.
A hydrogenosome is a membrane-enclosed organelle found in some anaerobic ciliates, flagellates, and fungi. Hydrogenosomes are highly variable organelles that have presumably evolved from protomitochondria to produce molecular hydrogen and ATP in anaerobic conditions.
Scalidophora is a group of marine pseudocoelomate protostomes that was proposed on morphological grounds to unite three phyla: the Kinorhyncha, the Priapulida and the Loricifera. The three phyla have four characters in common — chitinous cuticle that is moulted, rings of scalids on the introvert, flosculi, and two rings of introvert retracts. The introvert and abdomen are separated by a distinct neck region in all groups, but in adult macroscopic priapulids it becomes rudimentary in Priapulus and is completely absent in Halicryptus. However, the monophyly of the Scalidophora was not supported by two molecular studies, where the position of the Loricifera was uncertain or as sister to the Panarthropoda. Both studies supported a reduced Scalidophora comprising the Kinorhyncha and Priapulida as sister phyla. Their closest relatives are the Panarthropoda, Nematoda and Nematomorpha; thus, they are placed in the group Ecdysozoa.
In zoology, deep-sea gigantism or abyssal gigantism is the tendency for species of invertebrates and other deep-sea dwelling animals to be larger than their shallower-water relatives across a large taxonomic range. Proposed explanations for this type of gigantism include colder temperature, food scarcity, reduced predation pressure and increased dissolved oxygen concentrations in the deep sea. The inaccessibility of abyssal habitats has hindered the study of this topic.
L'Atalante basin is a hypersaline brine lake at the bottom of the Mediterranean Sea about 192 km (119 mi) west of the island of Crete. It is named for the French L'Atalante, one of the oceanographic research vessels involved in its discovery in 1993. L'Atalante and its neighbors the Urania and Discovery deep hyper saline anoxic basins (DHABs) are at most 35,000 years old. They were formed by Messinian evaporite salt deposits dissolving out of the Mediterranean Ridge and collecting in abyssal depressions about 3,000 m (9,800 ft) deep. L'Atalante is the smallest of the three; its surface begins at about 3,500 m (11,500 ft) below sea level.
Cyclorhagida is a class of kinorhynchs, which are small marine invertebrates.
The following outline is provided as an overview of and topical guide to life forms:
Australoricus oculatus is a species of Loricifera, a species of microscopic marine sediment-dwelling animals, in the family Nanaloricidae. It is the only described species in the genus Australoricus. It was discovered in sea caves off New South Wales in Australia.
Pliciloricus enigmaticus is a marine Loriciferan species of genus Pliciloricus first described by Higgins & Kristensen 1986.
Pliciloricidae are a family of marine organisms in the phylum Loricifera. It contains 23 species in 4 genera.
Rugiloricus is a genus of marine organisms of the phylum Loricifera and the family Pliciloricidae, described by Higgins & Kristensen in 1986.
Rugiloricus cauliculus is a species of marine animal of the phylum Loricifera and the family Pliciloricidae. The species was described by Higgins & Kristensen in 1986, however other sources such as OBIS indicate that discovery of the species occurred on 19 November 1983.
Titaniloricus is a genus of small marine animal in the phylum Loricifera. It contains a single species, Titaniloricus inexpectatovus, described by Gunnar Gad in 2005. It has been collected from the abyssal plain in Angolan waters of the Atlantic Ocean.
Pliciloricus dubius is a marine Loriciferan species of genus Pliciloricus described by Higgins & Kristensen 1986.
Robert Price Higgins was an American systematic invertebrate zoologist and ecologist, who specialized in the unusual taxa of kinorhynchs and tardigrades.
Urnaloricus is a genus of loricifera; it is distinct enough to belong to its own family, Urnaloricidae. Loricifera are phylum that are animals that live in marine area only, and very small in size. The Urnaloricus was found Southwest in the Faroe Islands, North Atlantic. It was the thirty-eighth loriciferan species found. One part of the life cycle is the Higgins larva and it is introverted with eight two-segmented clavoscalids.
Spinoloricus is a genus of nanaloricid loriciferans. Its type species is S. turbatio, described in 2007, and another species, native to completely anoxic environment, Spinoloricus cinziae, was described in 2014.
Armorloricus is a genus of nanaloricate loriciferans, small to microscopic marine sediment-dwelling animals.
Jeanne Renaud-Mornant, Born Jeanne Renaud, Jeanne Renaud-Debyser before her second marriage was a French biologist specialising in meiofauna.
