The phylum was discovered in by Reinhardt Kristensenin RoscoffFrance. The animals have a head, mouth and digestive system as well as a lorica. The armor-like lorica consists of a protective external shell or case of encircling plicae. Many of the larvae are acoelomatewith some adults being pseudocoelomateand some remaining acoelomate. The animals have two sexes as adults. Very complex and plastic life cycles of pliciloricids include also paedogenetic stages with different forms of parthenogenetic reproduction.
Morphological studies have traditionally placed the phylum in the vinctiplicata with the Priapulida ; this plus the Kinorhyncha constitutes the taxon Scalidophora. The three phyla share four characters in common — chitinous cuticle, rings of scalids on the introvert, flosculi, and two rings of introvert retracts.
The loriciferans are believed to be Youve Been Around - David Bowie - Black Tie White Noise descendants of a larger organism perhaps resembling the Cambrian fossil Sirilorica.
The discovery of Cambrian Period Eolorica deadwoodensis may shed some light on the group's history. Three species of Loricifera have been found in the sediments at the bottom of the L'Atalante basin in Mediterranean Seamore than 3, meters down, the first multicellular organisms known to spend their entire lives in an oxygen-free environment. They are able to do this because their mitochondria act like hydrogenosomesallowing them to respire anaerobically.
The newly reported animals complete their life cycle in the total absence of light and oxygen, and they are less than a millimetre in size. From Wikipedia, the free encyclopedia. Phylum of very small to microscopic marine Night Train - Uralsky All Stars* featuring Chris Barber and Hein De Jong - Well Meet Again animals.
See also: List of bilateral animal orders. Bibcode : PLoSO September . Journal of Zoological Systematics and Evolutionary Research. Zoologischer Anzeiger. Invertebrate Zoology 7th ed. July Integrative and Comparative Biology. Zoological Letters. March Journal of Paleontology. Nature Ecology and Evolution. Science News. BMC Biology. Extant Animal phyla.
Porifera sponges. Ctenophora comb jellies. Placozoa Trichoplax Cnidaria jellyfish and relatives. Xenacoelomorpha Xenoturbellida Xenoturbella Acoelomorpha acoels nemertodermatids. Echinodermata starfish Phylum - Salt - Re.Klad relatives Hemichordata acorn worms pterobranchs.
Kinorhyncha mud dragons Priapulida penis worms. Nematoda roundworms Nematomorpha horsehair worms. Loricifera corset animals. Onychophora velvet worms. Arthropoda arthropods Tardigrada waterbears. Chaetognatha arrow worms Gnathostomulida jaw worms. Micrognathozoa Limnognathia Syndermata Rotifera wheel animals Acanthocephala thorny-headed worms.
Orthonectida Dicyemida or Rhombozoa Monoblastozoa Salinella. Platyhelminthes flatworms Gastrotricha hairybacks. Cycliophora Symbion Annelida ringed worms. Mollusca molluscs. Nemertea ribbon worms. Phylum - Salt - Re.Klad or Kamptozoa Ectoprocta moss animals. Brachiopoda lamp shells Phoronida horseshoe worms. Authority control GND : Categories : Loricifera Animal phyla Extant Cambrian first appearances.
Hidden categories: Articles Phylum - Salt - Re.Klad short description Articles with 'species' microformats Use dmy dates from September All articles with self-published sources Articles with self-published Phylum - Salt - Re.Klad from December Wikipedia articles with GND identifiers.
Gnathifera Chaetognatha arrow worms Gnathostomulida jaw worms. Bryozoa s. GND :
Fegyverszünet - Cseh Tamás - Fehér Babák Takarodója, Madball - Droppin Many Suckers, Know Your Enemy - St. Vitus Dance - Love Me Love My Dogma And Then Some, Alcohol (Groove Version) - Ben Jor* - The Unreleased Sessions